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as.numeric(substr(otter[3,],3,4))\u003Cbr\u003E\n\u90fd\u6ca1\u6709\u6210\u529f\uff0c\u8bf7\u95ee\u6709\u4ec0\u4e48\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u8f6c\u6362\uff1f\u003Cbr\u003E\n\u8c22\u8c22\u3002\u003C\/del\u003E\u003C\/p\u003E\n\n\u003Cp\u003E\u4fee\u6539\u540e\u6b63\u6587\uff1a\u003C\/p\u003E\n\n\u003Cblockquote\u003E\u003Cp\u003E(\u003Cem\u003E\u4ee5markdown\u8fdb\u884c\u6392\u7248\uff0c\u5206\u4e3a\u6761\u7406\u6e05\u695a\u7684\u4e09\u4e2a\u5c0f\u6bb5\u003C\/em\u003E)\u003C\/p\u003E\u003C\/blockquote\u003E\n\n\u003Ch3\u003E\u95ee\u9898\u63cf\u8ff0\u003C\/h3\u003E\n\n\u003Cp\u003E\u6211\u6709\u4e00\u5217\u683c\u5f0f\u4e3a\u4e00\u5230\u56db\u4f4d\u6570\u7684\u6570\u5b57\uff0c\u5982 0, 2355 \u7b49\uff0c\u6211\u5e0c\u671b\u628a\u5b83\u4eec\u8f6c\u6362\u6210 0:00\uff0c 23:55 \u8fd9\u6837\u7684\u65f6\u95f4\u683c\u5f0f\uff0c\u4f46\u6ca1\u6709\u6210\u529f\u3002\u003C\/p\u003E\n\u003Cblockquote\u003E\u003Cp\u003E(\u003Cem\u003E\u7b80\u5355\u63cf\u8ff0\u6e05\u695a\u95ee\u9898\u548c\u9884\u671f\u7ed3\u679c\u5373\u53ef\uff0c\u5982\u679c\u53ef\u80fd\uff0c\u8bf7\u5c3d\u91cf\u63d0\u4f9b\u4e0a\u4e0b\u6587\u65b9\u4fbf\u7406\u89e3\u003C\/em\u003E)\u003C\/p\u003E\u003C\/blockquote\u003E\n\n\u003Ch3\u003E\u6211\u7684\u4ee3\u7801\u3001\u6570\u636e\u548c\u8fd0\u884c\u7ed3\u679c\u003C\/h3\u003E\n\n\u003Cp\u003E\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u8fdb\u884c\u4e86\u5982\u4e0b\u6d4b\u8bd5\uff0c\u5f97\u5230\u7684\u90fd\u4e0d\u662f\u9884\u671f\u7ed3\u679c\uff1a\u003C\/p\u003E\n\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode class=\u0022language-r\u0022\u003Emydata = read.csv(\u0022data.csv\u0022)\nformat(mydata, format = \u0022%h-%m\u0022)\nas.numeric(substr(mydata,1,2))*60 + as.numeric(substr(mydata,3,4))\ndput(mydata) \nsessionInfo()\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var 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noreferrer\u0022\u003E\u6c42\u52a9\u5e16\u8be5\u600e\u4e48\u5199\uff0c\u624d\u80fd\u5438\u5f15\u522b\u4eba\u6765\u5e2e\u5fd9\u003C\/a\u003E\u003C\/em\u003E)\u003C\/p\u003E\u003C\/blockquote\u003E\n\n\u003Ch3\u003E\u6211\u7684\u7cfb\u7edf\u73af\u5883\u003C\/h3\u003E\n\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode class=\u0022language-r\u0022\u003EsessionInfo()\n#\u0026gt; R version 3.5.1 (2018-07-02)\n#\u0026gt; Platform: x86_64-w64-mingw32\/x64 (64-bit)\n#\u0026gt; Running under: Windows 7 x64 (build 7601) Service Pack 1\n#\u0026gt; \n#\u0026gt; Matrix products: default\n#\u0026gt; \n#\u0026gt; locale:\n#\u0026gt; [1] LC_COLLATE=Chinese (Simplified)_People\u0027s Republic of China.936 \n#\u0026gt; [2] LC_CTYPE=Chinese (Simplified)_People\u0027s Republic of China.936 \n#\u0026gt; [3] LC_MONETARY=Chinese (Simplified)_People\u0027s Republic of China.936\n#\u0026gt; [4] LC_NUMERIC=C \n#\u0026gt; [5] LC_TIME=Chinese (Simplified)_People\u0027s Republic of China.936 \n#\u0026gt; \n#\u0026gt; attached base packages:\n#\u0026gt; [1] stats graphics grDevices utils datasets methods base \n#\u0026gt; \n#\u0026gt; loaded via a namespace (and not attached):\n#\u0026gt; [1] compiler_3.5.1 magrittr_1.5 htmltools_0.3.6 \n#\u0026gt; [4] tools_3.5.1 yaml_2.2.0 Rcpp_0.12.18 \n#\u0026gt; [7] stringi_1.2.4 rmarkdown_1.10.13 knitr_1.20 \n#\u0026gt; [10] htmldeps_0.1.1 digest_0.6.17 stringr_1.3.1 \n#\u0026gt; [13] evaluate_0.11\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var 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Markdown\u6392\u7248\u003C\/h1\u003E\n\n\u003Cp\u003E\u672c\u7ad9\u4f7f\u7528markdown\u8bed\u6cd5\u8fdb\u884c\u6392\u7248\u3002\u53d1\u5e16\u4e4b\u524d\u6211\u4eec\u5efa\u8bae\u82b1\u51e0\u5206\u949f\u5b66\u4e60\u57fa\u672c\u7684markdown\u8bed\u6cd5\uff0c\u4ee5\u4f7f\u4f60\u7684\u5e16\u5b50\u6709\u66f4\u597d\u7684\u89c2\u611f\u3002\u003C\/p\u003E\n \n\u003Cp\u003E\u8bf7\u53c2\u9605\u003Ca href=\u0022https:\/\/github.com\/adam-p\/markdown-here\/wiki\/Markdown-Cheatsheet\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Egithub \u7684markdown cheatsheet\u003C\/a\u003E,\u003C\/p\u003E\n \n\u003Cp\u003E\u4e0b\u9762\u4ec5\u5217\u4e3e\u53d1\u5e16\u4e2d\u5e38\u7528\u7684markdown\u8bed\u6cd5\u003C\/p\u003E\n\n\u003Cul\u003E\u003Cli\u003E\u003Cstrong\u003E\u6807\u9898\u003C\/strong\u003E - \n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode\u003E# \u4e00\u7ea7\u6807\u9898\n## \u4e8c\u7ea7\u6807\u9898\n### \u4e09\u7ea7\u6807\u9898\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var 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src=\u0022https:\/\/d.cosx.org\/assets\/logo-adex5ots.png\u0022 title=\u0022\u0022 alt=\u0022\u0022\u003E\u003C\/li\u003E\n\u003Cli\u003E\u003Cstrong\u003E\u5f15\u7528\u003C\/strong\u003E - \u5982\u003Ccode\u003E\u0026gt; \u4e0d\u60f3\u5f53\u88c1\u7f1d\u7684\u53f8\u673a\u5c31\u4e0d\u662f\u4e00\u4e2a\u597d\u53a8\u5b50\uff01\u003C\/code\u003E\uff0c\u6548\u679c\uff1a\u003C\/li\u003E\u003C\/ul\u003E\n\u003Cblockquote\u003E\u003Cp\u003E\u4e0d\u60f3\u5f53\u88c1\u7f1d\u7684\u53f8\u673a\u5c31\u4e0d\u662f\u4e00\u4e2a\u597d\u53a8\u5b50\uff01\u003C\/p\u003E\u003C\/blockquote\u003E\n\n\u003Cul\u003E\u003Cli\u003E\u003Cp\u003E\u003Cstrong\u003E\u53e5\u5185\u4ee3\u7801\u003C\/strong\u003E - \u5982\u003Ccode\u003E`lm(y ~ x, data = mydata)`\u003C\/code\u003E\uff0c\u6548\u679c\uff1a\u003Ccode\u003Elm(y ~ x, data = mydata)\u003C\/code\u003E\u003C\/p\u003E\u003C\/li\u003E\n\n\u003Cli\u003E\u003Cp\u003E\u003Cstrong\u003E\u4ee3\u7801\u5757\u003C\/strong\u003E - \u5982\u003C\/p\u003E\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode class=\u0022language-markdown\u0022\u003E```r\nplot(cumsum(rnorm(100)), xlab = \u0027i\u0027, ylab = \u0027Brownian Motion\u0027)\n```\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var 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\u8bed\u6cd5\u4e2d\uff0c\u6b64\u5916\u8fd8\u52a0\u5165\u4e86 Emoji \u8868\u60c5\u548c\u6570\u5b66\u516c\u5f0f\u7b49\u3002\u003C\/p\u003E\n\n\u003Ch3\u003E1.1 Markdown\u003C\/h3\u003E\n\n\u003Cp\u003EMarkdown \u7684\u8bed\u6cd5\u53ef\u4ee5\u53c2\u8003\u003Ca href=\u0022https:\/\/github.com\/Melo618\/Simple-Markdown-Guide\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003E\u8fd9\u91cc\u003C\/a\u003E\uff0c\u57fa\u672c\u6db5\u76d6\u4e86\u5e38\u89c1\u7684\u683c\u5f0f\u64cd\u4f5c\u3002\u5927\u7247\u7684\u4ee3\u7801\u7528\u53cd\u5f15\u53f7\u5305\u8d77\u6765\uff0c\u6bd4\u5982\u003C\/p\u003E\n\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode\u003E```\nlibrary(ggplot)\n```\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var 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d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var b=document.querySelectorAll(\u0022pre[data-hljs]\u0022),c=b.length;0\u003Cc;)hljs._hb(b.item(--c))};hljs._ha()};e.async=!0;e.src=\u0022\/\/uploads.cosx.org\/static\/hljs\/highlight.pack.js\u0022;a.appendChild(e)}\u003C\/script\u003E\n\n\u003Cp\u003E\u91cd\u73b0\u672c\u95ee\u9898\uff0c\u53ea\u9700\u6267\u884c\u4ee5\u4e0b\u4e09\u6b65\u003C\/p\u003E\n\n\u003Col\u003E\u003Cli\u003E\u6253\u5f00 RStudio \u65b0\u5efa bookdown \u9879\u76ee\u003C\/li\u003E\n\u003Cli\u003E\u5c06\u5176\u4e2d\u67d0\u4e2a Rmd \u6587\u4ef6\u5982 \u003Ccode\u003E05-application.Rmd\u003C\/code\u003E \u91cd\u547d\u540d\u4e3a \u003Ccode\u003E05-Na\u00efve-Bayes.Rmd\u003C\/code\u003E\u003C\/li\u003E\n\u003Cli\u003E\u8fd0\u884c 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You may rename it to, e.g., \u002205-Na-ve-Bayes.Rmd\u0022.\n\u0026gt; traceback()\n6: stop(\u0022Filenames must not contain special characters\u0022)\n5: check_special_chars(files)\n4: source_files(format, config)\n3: as.vector(x)\n2: setdiff(source_files(format, config), main)\n1: bookdown::render_book(\u0022index.Rmd\u0022)\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var b=document.querySelectorAll(\u0022pre[data-hljs]\u0022),c=b.length;0\u003Cc;)hljs._hb(b.item(--c))};hljs._ha()};e.async=!0;e.src=\u0022\/\/uploads.cosx.org\/static\/hljs\/highlight.pack.js\u0022;a.appendChild(e)}\u003C\/script\u003E\n\n\u003Cp\u003E\u95ee\u9898\u53ef\u80fd\u662f\u628a\u6587\u4ef6\u540d\u4e2d\u7684\u5b57\u7b26\u7ed9\u8f6c\u6362\u574f\u4e86\uff0c\u6bd4\u5982\u8f6c\u6210\u95ee\u53f7 ?\u003C\/p\u003E"}},{"type":"posts","id":"431821","attributes":{"id":431821,"number":1,"createdAt":"2019-06-02T05:35:43+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u6587\u7ae0\u94fe\u63a5 \u003Ca href=\u0022https:\/\/cosx.org\/2019\/05\/recheck-the-lady-tasting-tea\/\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Ehttps:\/\/cosx.org\/2019\/05\/recheck-the-lady-tasting-tea\/\u003C\/a\u003E\u003C\/p\u003E"}},{"type":"posts","id":"431899","attributes":{"id":431899,"number":1,"createdAt":"2019-06-08T03:37:25+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u6628\u5929\u6536\u5230\u4e00\u5219 knitr \u95ee\u9898\u62a5\u544a\uff1a\u003Ca href=\u0022https:\/\/github.com\/yihui\/knitr\/issues\/1719\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Ehttps:\/\/github.com\/yihui\/knitr\/issues\/1719\u003C\/a\u003E \u5c06\u6765\u6211\u8981\u662f\u60f3\u62db\u4eba\u6765\u505a R Markdown \u76f8\u5173\u7684\u5f00\u53d1\u5de5\u4f5c\uff0c\u8fd9\u4e2a\u95ee\u9898\u53ef\u4ee5\u4f5c\u4e3a\u4e00\u9053\u9762\u8bd5\u9898\uff0c\u56e0\u4e3a\u5b83\u6d89\u53ca\u5230\u7684\u6280\u80fd\u6bd4\u8f83\u5e7f\uff0c\u6700\u540e\u7b54\u6848\u4e5f\u6709\u4e9b\u51fa\u4eba\u610f\u6599\u3002\u8981\u662f\u6709\u4eba\u95f2\u7740\u65e0\u4e8b\uff0c\u53ef\u4ee5\u5148\u4e0d\u770b\u6211\u7684\u7b54\u6848\uff0c\u81ea\u5df1\u63a2\u7d22\u4e00\u4e0b\u8fd9\u4e2a\u95ee\u9898\u662f\u600e\u4e48\u56de\u4e8b\uff0c\u5e76\u8bb2\u8bb2\u4f60\u662f\u600e\u4e48\u4fa6\u7834\u8fd9\u4e2a\u6848\u5b50\u7684\u3002\u003C\/p\u003E"}},{"type":"posts","id":"431807","attributes":{"id":431807,"number":1,"createdAt":"2019-05-31T07:38:12+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u4e3a\u4ec0\u4e48\u6211\u7684\u6781\u5927\u4f3c\u7136\u4f30\u8ba1\u603b\u662f\u663e\u793a\u201cinitial value in \u0027vmmin\u0027 is not finite\u201d\uff1f\u003Cbr\u003E\n\u5404\u4f4d\u5927\u5927\uff0c\u5c0f\u5f1f\u4f7f\u7528R\u5199\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u6781\u5927\u4f3c\u7136\u4f30\u8ba1\u6765\u4f30\u8ba1probit\u6a21\u578b\uff0c\u4f46\u662f\u6700\u540e\u603b\u662f\u663e\u793a\u201cinitial value in \u0027vmmin\u0027 is not finite\u201d\uff0c\u6c42\u6559\u5982\u4f55\u6539\u8fdb\u4e0b\u9762\u7684\u7a0b\u5e8f\uff0c\u4e0d\u60f3\u4f7f\u7528mle\u7b49\u76f8\u5173\u7684package\uff0c\u53ea\u4f7f\u7528\u4f3c\u7136\u51fd\u6570\u548c\u6700\u4f18\u5316\u3002\u003Cbr\u003E\n\u76ee\u524d\u67e5\u4e86\u4e00\u4e0b\u539f\u56e0\uff0c\u7a0b\u5e8f\u672c\u8eab\u662f\u6ca1\u6709\u95ee\u9898\u7684\uff0c\u95ee\u9898\u51fa\u5728\u6570\u636e\u5f53\u4e2d\u56e0\u53d8\u91cf\u548c\u81ea\u53d8\u91cf\u5f53\u4e2d\u90fd\u5b58\u5728\u7f3a\u5931\u503c\uff0c\u6211\u5728stata\u91cc\u9762\u5220\u6389\u7f3a\u5931\u6837\u672c\u540e\u7684\u6570\u636e\u7528\u4e0b\u9762\u7684\u7a0b\u5e8f\u662f\u53ef\u4ee5\u8dd1\u7684\uff0c\u60f3\u8bf7\u95ee\u4e00\u4e0b\u5728R\u91cc\u9762\u5982\u4f55\u5728\u4e0d\u5220\u9664\u7f3a\u5931\u6837\u672c\u7684\u524d\u63d0\u4e0b\uff0c\u76f4\u63a5\u4fee\u6539\u4e0b\u9762\u7a0b\u5e8f\u6c42\u89e3\uff1a\u003Cbr\u003E\n----------------------- copy starting from the next line -----------------------\u003C\/p\u003E\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode\u003E* Example generated by -dataex-. To install: ssc install dataex\nlibrary(haven)\nlibrary(summarytools)\nlibrary(matrixStats)\n\n# --- prepare data ---\n\nxtlogit_data \u0026lt;- read_dta(\u0022C:\\\\Users\\\\ThinkPad\\\\Desktop\\\\MSL for R\\\\xtlogit_data.dta\u0022)\nattach(xtlogit_data)\n\n\n# model matrix `X` and response `Y`\nX \u0026lt;- cbind(1, age , grade , not_smsa , south)\nY \u0026lt;- union\nK\u0026lt;- ncol(X)\n\n# initial guess on coefficients\n\nans_logit \u0026lt;- glm(union ~ age + grade + not_smsa + south, \n family = binomial(link = \u0022logit\u0022), \n data = xtlogit_data)\nvi \u0026lt;- c(coef(ans_logit))\n\n\n\n\n# requires model matrix `X` and binary response `Y`\nprobit.nll \u0026lt;- function (beta) {\n # linear predictor\n eta \u0026lt;- X %*% beta\n # probability\n p \u0026lt;- pnorm(eta)\n # negative log-likelihood\n -sum((1 - Y) * log(1 - p) + Y * log(p))\n}\n\n# requires model matrix `X` and binary response `Y`\nprobit.gr \u0026lt;- function (beta) {\n # linear predictor\n eta \u0026lt;- X %*% beta\n # probability\n p \u0026lt;- pnorm(eta)\n # chain rule\n u \u0026lt;- dnorm(eta) * (Y - p) \/ (p * (1 - p))\n # gradient\n -crossprod(X, u)\n}\n\nfit \u0026lt;- optim(vi, probit.nll , method = \u0022BFGS\u0022, hessian = TRUE)\n# comparison\n\nfit$par\n\nend\n\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var b=document.querySelectorAll(\u0022pre[data-hljs]\u0022),c=b.length;0\u003Cc;)hljs._hb(b.item(--c))};hljs._ha()};e.async=!0;e.src=\u0022\/\/uploads.cosx.org\/static\/hljs\/highlight.pack.js\u0022;a.appendChild(e)}\u003C\/script\u003E\n\u003Cp\u003E------------------ copy up to and including the previous line ------------------\u003C\/p\u003E\n\n\u003Cp\u003E\u6570\u636e\u5728\u4e0b\u9762\u7684\u94fe\u63a5\u5f53\u4e2d\uff1a\u94fe\u63a5\uff1a\u003Ca href=\u0022https:\/\/pan.baidu.com\/s\/1NCwt3pimR9dwXBPU1Dg0yw\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Ehttps:\/\/pan.baidu.com\/s\/1NCwt3pimR9dwXBPU1Dg0yw\u003C\/a\u003E \u63d0\u53d6\u7801\uff1ajvvf\u003Cbr\u003E\n\u671b\u5404\u4f4d\u4e0d\u541d\u8d50\u6559\uff0c\u4e0d\u80dc\u611f\u6fc0\u003C\/p\u003E \n"}},{"type":"posts","id":"11218","attributes":{"id":11218,"number":1,"createdAt":"2008-06-13T18:49:24+00:00","contentType":"comment","contentHtml":" \u6211\u770b\u5230\u7684\u7edf\u8ba1\u4e66\u4e2d\u8ba1\u7b97F\u503c\u90fd\u662f\u4e24\u4e2a\u6837\u672c\u65b9\u5dee\u7684\u6bd4,EXCEL\u7684F\u503c\u6b63\u662f\u8fd9\u6837,\u4f46SPSS\u7684F\u503c\u4e0d\u662f\u8fd9\u6837,\u7528\u7684\u662fLevene\u0027s Test,\u8bf7\u6559\u8bf8\u4f4d,\u8fd9\u4e2a\u68c0\u9a8c\u600e\u4e48\u8ba1\u7b97F\u503c?"}},{"type":"posts","id":"431931","attributes":{"id":431931,"number":1,"createdAt":"2019-06-11T02:10:57+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u5404\u4f4d\u5c11\u4fa0\u5973\u4fa0\uff1a\u003C\/p\u003E\n\n\u003Cp\u003E\u672c\u4ebaR\u8bed\u8a00\u65b0\u624b\uff0c\u5728\u6a21\u4eff\u300a\u7edf\u8ba1\u5b66--\u57fa\u4e8eR\u300b\uff08\u7b2c\u4e8c\u7248\uff09 P238\u7684\u4f8b\u30109-1\u3011\u65f6\u5019\u51fa\u73b0\u4e86\u62a5\u9519\uff1a\u003Cbr\u003E\n\u5f53\u4f7f\u7528R\u8bed\u8a00\u5c06excel \u5bfc\u5165Rstudio\u65f6\u5019\uff0c\u663e\u793a\u8868\u683c\u5217\u4e2d\u5df2\u7ecf\u6210\u529f\u5bfc\u5165\u6570\u503c\u3002 \u5982\u56fe\uff08\u8c8c\u4f3c\u8fd9\u4e2a\u7f51\u7ad9\u4e0d\u652f\u6301\u56fe\u7247\uff09\u003Cbr\u003E\n\u56fe\u7247\u89c1\u539f\u94fe\u63a5\uff1a\u003Ca href=\u0022https:\/\/ask.csdn.net\/questions\/765345\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Ehttps:\/\/ask.csdn.net\/questions\/765345\u003C\/a\u003E\u003Cbr\u003E\n\u003Cimg src=\u0022https:\/\/img-ask.csdn.net\/upload\/201906\/10\/1560174273_375314.png\u0022 title=\u0022\u0022 alt=\u0022\u0022\u003E\u003Cbr\u003E\n\u4f46\u662f \u5f53\u5c1d\u8bd5\u4f7f\u7528scatterplot\uff08\uff09\u57fa\u4e8e\u539f\u59cb\u6570\u636e\u8fdb\u884c\u7ed8\u5236\u6563\u70b9\u56fe\u7684\u65f6\u5019\u5374\u663e\u793a \u201c\u5e7f\u544a\u652f\u51fa\u201d\u4e00\u5217\u627e\u4e0d\u5230\uff08\u003Cstrong\u003E\u62a5\u9519\uff1aError in eval(predvars, data, env) : object \u0027\u5e7f\u544a\u652f\u51fa\u0027 not found\u003C\/strong\u003E\uff09\u003Cbr\u003E\n\u6211\u7684\u4ee3\u7801\u5982\u4e0b\uff1a\u003Cbr\u003E\n\u003Ccode\u003Escatterplot(\u9500\u552e\u6536\u5165~\u5e7f\u544a\u652f\u51fa,data=table_9_1,spread=FALSE,pch=19,xlab=\u0022\u5e7f\u544a\u652f\u51fa\u0022,ylab=\u0022\u9500\u552e\u6536\u5165\u0022,cex.lab=0.8)\u003C\/code\u003E\u003Cbr\u003E\n\u6c42\u9ad8\u624b\u6307\u70b9\u8ff7\u6d25\u3002\u003C\/p\u003E\n\n\u003Cp\u003E\u62a5\u62f3\u003C\/p\u003E"}},{"type":"posts","id":"431864","attributes":{"id":431864,"number":1,"createdAt":"2019-06-04T09:45:51+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u5927\u5bb6\u597d\uff1a \u672c\u4eba\u6700\u8fd1\u5728\u5b66\u4e60\u8d3e\u5e73\u4fca\u7684 \u300a\u7edf\u8ba1\u5b66 -\u57fa\u4e8eR \u300b \uff08\u7b2c\u4e8c\u7248\uff09 \u003Cbr\u003E\n\u5728P162 \u9875 \u4f8b\u98986-3\uff1a\u6839\u636e\u6700\u8fd1\u4e00\u6bb5\u65f6\u95f4\u768440\u6b21\u7a7a\u6c14\u68c0\u6d4b\u7ed3\u679c \u68c0\u9a8c\u8be5\u57ce\u5e02PM2.5\u662f\u5426\u663e\u8457\u4f4e\u4e8e\u5747\u503c\u003C\/p\u003E\n\n\u003Cp\u003E\u6211\u7684\u4ee3\u7801\u5982\u4e0b\u003C\/p\u003E\n\n\u003Cp\u003Elibrary(BSDA)\u003Cbr\u003E\nz.test(table_6_3$PM2.5\u503c,mu=81,sigma.x=sd(table_6_3$PM2.5\u503c),alternative=\u0022less\u0022,conf.level=0.95)\u003C\/p\u003E\n\n\u003Cp\u003E\u5176\u4e2d\u7684table_6_3\u662f\u81ea\u5efa\u8868\u683c \u5982\u56fe\uff1a\u003C\/p\u003E\n\n\u003Cp\u003Etable_6_3\u003Cbr\u003E\nX1 X2 X3 X4 X5 X6 X7 X8\u003Cbr\u003E\n1 82.6 74.7 79.9 87.5 73.8 79.8 87.0 68.3\u003Cbr\u003E\n2 68.5 78.0 86.2 76.9 75.7 89.9 80.2 85.1\u003Cbr\u003E\n3 85.1 89.2 77.7 57.5 65.3 80.2 74.7 68.8\u003Cbr\u003E\n4 97.6 75.0 80.1 76.6 85.1 76.1 81.6 72.5\u003Cbr\u003E\n5 93.5 77.8 80.7 84.5 77.3 83.3 82.2 85.5\u003C\/p\u003E\n\n\u003Cp\u003E\u8fd0\u884c\u540e\u7cfb\u7edf\u62a5\u9519\uff1a\u003Cbr\u003E\nError in z.test(table_6_3$PM2.5\u503c, mu = 81, sigma.x = sd(table_6_3$PM2.5\u503c), : \u003Cbr\u003E\nnot enough x observations\u003Cbr\u003E\n\u8bf7\u95ee\u8fd9\u662f\u4e3a\u4ec0\u4e48\uff0c\u4ee5\u53ca\u600e\u4e48\u7834 \u975e\u5e38\u611f\u8c22\uff01\u003C\/p\u003E\n"}},{"type":"posts","id":"431928","attributes":{"id":431928,"number":1,"createdAt":"2019-06-10T21:46:49+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u4eca\u5929\u5347\u7ea7R3.6\uff0c\u987a\u4fbf\u66f4\u65b0\u4e86dplyr,purrr,stringr,stringi\u7b49\u5305\uff0c\u7136\u540e\u7f16\u8bd1\u4e86\u81ea\u5df1\u7684\u5de5\u5177\u5305mypkg,\u7ed3\u679cmypkg\u4e2d\u6253\u5305\u7684\u6570\u636e\u4e2d\u6587\u53d8\u6210\u4e86\u4e71\u7801\uff0c\u540e\u7eed\u7684\u5f88\u591a\u7a0b\u5e8f\u90fd\u4e0d\u80fd\u8fd0\u884c\u4e86\uff0c\u4e0d\u77e5\u90533.6\u5728\u7f16\u7801\u65b9\u9762\u6709\u4ec0\u4e48\u65b0\u7684\u53d8\u5316\uff0c\u5728windows\u4e0b\u6709\u6ca1\u6709\u4ec0\u4e48\u53c2\u6570\u53ef\u4ee5\u8bbe\u7f6e\uff1f 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Extraction
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as.numeric(substr(otter[3,],3,4))\u003Cbr\u003E\n\u90fd\u6ca1\u6709\u6210\u529f\uff0c\u8bf7\u95ee\u6709\u4ec0\u4e48\u65b9\u6cd5\u53ef\u4ee5\u5b9e\u73b0\u8f6c\u6362\uff1f\u003Cbr\u003E\n\u8c22\u8c22\u3002\u003C\/del\u003E\u003C\/p\u003E\n\n\u003Cp\u003E\u4fee\u6539\u540e\u6b63\u6587\uff1a\u003C\/p\u003E\n\n\u003Cblockquote\u003E\u003Cp\u003E(\u003Cem\u003E\u4ee5markdown\u8fdb\u884c\u6392\u7248\uff0c\u5206\u4e3a\u6761\u7406\u6e05\u695a\u7684\u4e09\u4e2a\u5c0f\u6bb5\u003C\/em\u003E)\u003C\/p\u003E\u003C\/blockquote\u003E\n\n\u003Ch3\u003E\u95ee\u9898\u63cf\u8ff0\u003C\/h3\u003E\n\n\u003Cp\u003E\u6211\u6709\u4e00\u5217\u683c\u5f0f\u4e3a\u4e00\u5230\u56db\u4f4d\u6570\u7684\u6570\u5b57\uff0c\u5982 0, 2355 \u7b49\uff0c\u6211\u5e0c\u671b\u628a\u5b83\u4eec\u8f6c\u6362\u6210 0:00\uff0c 23:55 \u8fd9\u6837\u7684\u65f6\u95f4\u683c\u5f0f\uff0c\u4f46\u6ca1\u6709\u6210\u529f\u3002\u003C\/p\u003E\n\u003Cblockquote\u003E\u003Cp\u003E(\u003Cem\u003E\u7b80\u5355\u63cf\u8ff0\u6e05\u695a\u95ee\u9898\u548c\u9884\u671f\u7ed3\u679c\u5373\u53ef\uff0c\u5982\u679c\u53ef\u80fd\uff0c\u8bf7\u5c3d\u91cf\u63d0\u4f9b\u4e0a\u4e0b\u6587\u65b9\u4fbf\u7406\u89e3\u003C\/em\u003E)\u003C\/p\u003E\u003C\/blockquote\u003E\n\n\u003Ch3\u003E\u6211\u7684\u4ee3\u7801\u3001\u6570\u636e\u548c\u8fd0\u884c\u7ed3\u679c\u003C\/h3\u003E\n\n\u003Cp\u003E\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u8fdb\u884c\u4e86\u5982\u4e0b\u6d4b\u8bd5\uff0c\u5f97\u5230\u7684\u90fd\u4e0d\u662f\u9884\u671f\u7ed3\u679c\uff1a\u003C\/p\u003E\n\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode class=\u0022language-r\u0022\u003Emydata = read.csv(\u0022data.csv\u0022)\nformat(mydata, format = \u0022%h-%m\u0022)\nas.numeric(substr(mydata,1,2))*60 + as.numeric(substr(mydata,3,4))\ndput(mydata) \nsessionInfo()\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var 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noreferrer\u0022\u003E\u6c42\u52a9\u5e16\u8be5\u600e\u4e48\u5199\uff0c\u624d\u80fd\u5438\u5f15\u522b\u4eba\u6765\u5e2e\u5fd9\u003C\/a\u003E\u003C\/em\u003E)\u003C\/p\u003E\u003C\/blockquote\u003E\n\n\u003Ch3\u003E\u6211\u7684\u7cfb\u7edf\u73af\u5883\u003C\/h3\u003E\n\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode class=\u0022language-r\u0022\u003EsessionInfo()\n#\u0026gt; R version 3.5.1 (2018-07-02)\n#\u0026gt; Platform: x86_64-w64-mingw32\/x64 (64-bit)\n#\u0026gt; Running under: Windows 7 x64 (build 7601) Service Pack 1\n#\u0026gt; \n#\u0026gt; Matrix products: default\n#\u0026gt; \n#\u0026gt; locale:\n#\u0026gt; [1] LC_COLLATE=Chinese (Simplified)_People\u0027s Republic of China.936 \n#\u0026gt; [2] LC_CTYPE=Chinese (Simplified)_People\u0027s Republic of China.936 \n#\u0026gt; [3] LC_MONETARY=Chinese (Simplified)_People\u0027s Republic of China.936\n#\u0026gt; [4] LC_NUMERIC=C \n#\u0026gt; [5] LC_TIME=Chinese (Simplified)_People\u0027s Republic of China.936 \n#\u0026gt; \n#\u0026gt; attached base packages:\n#\u0026gt; [1] stats graphics grDevices utils datasets methods base \n#\u0026gt; \n#\u0026gt; loaded via a namespace (and not attached):\n#\u0026gt; [1] compiler_3.5.1 magrittr_1.5 htmltools_0.3.6 \n#\u0026gt; [4] tools_3.5.1 yaml_2.2.0 Rcpp_0.12.18 \n#\u0026gt; [7] stringi_1.2.4 rmarkdown_1.10.13 knitr_1.20 \n#\u0026gt; [10] htmldeps_0.1.1 digest_0.6.17 stringr_1.3.1 \n#\u0026gt; [13] evaluate_0.11\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var 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Markdown\u6392\u7248\u003C\/h1\u003E\n\n\u003Cp\u003E\u672c\u7ad9\u4f7f\u7528markdown\u8bed\u6cd5\u8fdb\u884c\u6392\u7248\u3002\u53d1\u5e16\u4e4b\u524d\u6211\u4eec\u5efa\u8bae\u82b1\u51e0\u5206\u949f\u5b66\u4e60\u57fa\u672c\u7684markdown\u8bed\u6cd5\uff0c\u4ee5\u4f7f\u4f60\u7684\u5e16\u5b50\u6709\u66f4\u597d\u7684\u89c2\u611f\u3002\u003C\/p\u003E\n \n\u003Cp\u003E\u8bf7\u53c2\u9605\u003Ca href=\u0022https:\/\/github.com\/adam-p\/markdown-here\/wiki\/Markdown-Cheatsheet\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Egithub \u7684markdown cheatsheet\u003C\/a\u003E,\u003C\/p\u003E\n \n\u003Cp\u003E\u4e0b\u9762\u4ec5\u5217\u4e3e\u53d1\u5e16\u4e2d\u5e38\u7528\u7684markdown\u8bed\u6cd5\u003C\/p\u003E\n\n\u003Cul\u003E\u003Cli\u003E\u003Cstrong\u003E\u6807\u9898\u003C\/strong\u003E - \n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode\u003E# \u4e00\u7ea7\u6807\u9898\n## \u4e8c\u7ea7\u6807\u9898\n### \u4e09\u7ea7\u6807\u9898\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var 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src=\u0022https:\/\/d.cosx.org\/assets\/logo-adex5ots.png\u0022 title=\u0022\u0022 alt=\u0022\u0022\u003E\u003C\/li\u003E\n\u003Cli\u003E\u003Cstrong\u003E\u5f15\u7528\u003C\/strong\u003E - \u5982\u003Ccode\u003E\u0026gt; \u4e0d\u60f3\u5f53\u88c1\u7f1d\u7684\u53f8\u673a\u5c31\u4e0d\u662f\u4e00\u4e2a\u597d\u53a8\u5b50\uff01\u003C\/code\u003E\uff0c\u6548\u679c\uff1a\u003C\/li\u003E\u003C\/ul\u003E\n\u003Cblockquote\u003E\u003Cp\u003E\u4e0d\u60f3\u5f53\u88c1\u7f1d\u7684\u53f8\u673a\u5c31\u4e0d\u662f\u4e00\u4e2a\u597d\u53a8\u5b50\uff01\u003C\/p\u003E\u003C\/blockquote\u003E\n\n\u003Cul\u003E\u003Cli\u003E\u003Cp\u003E\u003Cstrong\u003E\u53e5\u5185\u4ee3\u7801\u003C\/strong\u003E - \u5982\u003Ccode\u003E`lm(y ~ x, data = mydata)`\u003C\/code\u003E\uff0c\u6548\u679c\uff1a\u003Ccode\u003Elm(y ~ x, data = mydata)\u003C\/code\u003E\u003C\/p\u003E\u003C\/li\u003E\n\n\u003Cli\u003E\u003Cp\u003E\u003Cstrong\u003E\u4ee3\u7801\u5757\u003C\/strong\u003E - \u5982\u003C\/p\u003E\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode class=\u0022language-markdown\u0022\u003E```r\nplot(cumsum(rnorm(100)), xlab = \u0027i\u0027, ylab = \u0027Brownian Motion\u0027)\n```\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var 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\u8bed\u6cd5\u4e2d\uff0c\u6b64\u5916\u8fd8\u52a0\u5165\u4e86 Emoji \u8868\u60c5\u548c\u6570\u5b66\u516c\u5f0f\u7b49\u3002\u003C\/p\u003E\n\n\u003Ch3\u003E1.1 Markdown\u003C\/h3\u003E\n\n\u003Cp\u003EMarkdown \u7684\u8bed\u6cd5\u53ef\u4ee5\u53c2\u8003\u003Ca href=\u0022https:\/\/github.com\/Melo618\/Simple-Markdown-Guide\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003E\u8fd9\u91cc\u003C\/a\u003E\uff0c\u57fa\u672c\u6db5\u76d6\u4e86\u5e38\u89c1\u7684\u683c\u5f0f\u64cd\u4f5c\u3002\u5927\u7247\u7684\u4ee3\u7801\u7528\u53cd\u5f15\u53f7\u5305\u8d77\u6765\uff0c\u6bd4\u5982\u003C\/p\u003E\n\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode\u003E```\nlibrary(ggplot)\n```\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var 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d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var b=document.querySelectorAll(\u0022pre[data-hljs]\u0022),c=b.length;0\u003Cc;)hljs._hb(b.item(--c))};hljs._ha()};e.async=!0;e.src=\u0022\/\/uploads.cosx.org\/static\/hljs\/highlight.pack.js\u0022;a.appendChild(e)}\u003C\/script\u003E\n\n\u003Cp\u003E\u91cd\u73b0\u672c\u95ee\u9898\uff0c\u53ea\u9700\u6267\u884c\u4ee5\u4e0b\u4e09\u6b65\u003C\/p\u003E\n\n\u003Col\u003E\u003Cli\u003E\u6253\u5f00 RStudio \u65b0\u5efa bookdown \u9879\u76ee\u003C\/li\u003E\n\u003Cli\u003E\u5c06\u5176\u4e2d\u67d0\u4e2a Rmd \u6587\u4ef6\u5982 \u003Ccode\u003E05-application.Rmd\u003C\/code\u003E \u91cd\u547d\u540d\u4e3a \u003Ccode\u003E05-Na\u00efve-Bayes.Rmd\u003C\/code\u003E\u003C\/li\u003E\n\u003Cli\u003E\u8fd0\u884c 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You may rename it to, e.g., \u002205-Na-ve-Bayes.Rmd\u0022.\n\u0026gt; traceback()\n6: stop(\u0022Filenames must not contain special characters\u0022)\n5: check_special_chars(files)\n4: source_files(format, config)\n3: as.vector(x)\n2: setdiff(source_files(format, config), main)\n1: bookdown::render_book(\u0022index.Rmd\u0022)\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var b=document.querySelectorAll(\u0022pre[data-hljs]\u0022),c=b.length;0\u003Cc;)hljs._hb(b.item(--c))};hljs._ha()};e.async=!0;e.src=\u0022\/\/uploads.cosx.org\/static\/hljs\/highlight.pack.js\u0022;a.appendChild(e)}\u003C\/script\u003E\n\n\u003Cp\u003E\u95ee\u9898\u53ef\u80fd\u662f\u628a\u6587\u4ef6\u540d\u4e2d\u7684\u5b57\u7b26\u7ed9\u8f6c\u6362\u574f\u4e86\uff0c\u6bd4\u5982\u8f6c\u6210\u95ee\u53f7 ?\u003C\/p\u003E"}},{"type":"posts","id":"431821","attributes":{"id":431821,"number":1,"createdAt":"2019-06-02T05:35:43+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u6587\u7ae0\u94fe\u63a5 \u003Ca href=\u0022https:\/\/cosx.org\/2019\/05\/recheck-the-lady-tasting-tea\/\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Ehttps:\/\/cosx.org\/2019\/05\/recheck-the-lady-tasting-tea\/\u003C\/a\u003E\u003C\/p\u003E"}},{"type":"posts","id":"431899","attributes":{"id":431899,"number":1,"createdAt":"2019-06-08T03:37:25+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u6628\u5929\u6536\u5230\u4e00\u5219 knitr \u95ee\u9898\u62a5\u544a\uff1a\u003Ca href=\u0022https:\/\/github.com\/yihui\/knitr\/issues\/1719\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Ehttps:\/\/github.com\/yihui\/knitr\/issues\/1719\u003C\/a\u003E \u5c06\u6765\u6211\u8981\u662f\u60f3\u62db\u4eba\u6765\u505a R Markdown \u76f8\u5173\u7684\u5f00\u53d1\u5de5\u4f5c\uff0c\u8fd9\u4e2a\u95ee\u9898\u53ef\u4ee5\u4f5c\u4e3a\u4e00\u9053\u9762\u8bd5\u9898\uff0c\u56e0\u4e3a\u5b83\u6d89\u53ca\u5230\u7684\u6280\u80fd\u6bd4\u8f83\u5e7f\uff0c\u6700\u540e\u7b54\u6848\u4e5f\u6709\u4e9b\u51fa\u4eba\u610f\u6599\u3002\u8981\u662f\u6709\u4eba\u95f2\u7740\u65e0\u4e8b\uff0c\u53ef\u4ee5\u5148\u4e0d\u770b\u6211\u7684\u7b54\u6848\uff0c\u81ea\u5df1\u63a2\u7d22\u4e00\u4e0b\u8fd9\u4e2a\u95ee\u9898\u662f\u600e\u4e48\u56de\u4e8b\uff0c\u5e76\u8bb2\u8bb2\u4f60\u662f\u600e\u4e48\u4fa6\u7834\u8fd9\u4e2a\u6848\u5b50\u7684\u3002\u003C\/p\u003E"}},{"type":"posts","id":"431807","attributes":{"id":431807,"number":1,"createdAt":"2019-05-31T07:38:12+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u4e3a\u4ec0\u4e48\u6211\u7684\u6781\u5927\u4f3c\u7136\u4f30\u8ba1\u603b\u662f\u663e\u793a\u201cinitial value in \u0027vmmin\u0027 is not finite\u201d\uff1f\u003Cbr\u003E\n\u5404\u4f4d\u5927\u5927\uff0c\u5c0f\u5f1f\u4f7f\u7528R\u5199\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u6781\u5927\u4f3c\u7136\u4f30\u8ba1\u6765\u4f30\u8ba1probit\u6a21\u578b\uff0c\u4f46\u662f\u6700\u540e\u603b\u662f\u663e\u793a\u201cinitial value in \u0027vmmin\u0027 is not finite\u201d\uff0c\u6c42\u6559\u5982\u4f55\u6539\u8fdb\u4e0b\u9762\u7684\u7a0b\u5e8f\uff0c\u4e0d\u60f3\u4f7f\u7528mle\u7b49\u76f8\u5173\u7684package\uff0c\u53ea\u4f7f\u7528\u4f3c\u7136\u51fd\u6570\u548c\u6700\u4f18\u5316\u3002\u003Cbr\u003E\n\u76ee\u524d\u67e5\u4e86\u4e00\u4e0b\u539f\u56e0\uff0c\u7a0b\u5e8f\u672c\u8eab\u662f\u6ca1\u6709\u95ee\u9898\u7684\uff0c\u95ee\u9898\u51fa\u5728\u6570\u636e\u5f53\u4e2d\u56e0\u53d8\u91cf\u548c\u81ea\u53d8\u91cf\u5f53\u4e2d\u90fd\u5b58\u5728\u7f3a\u5931\u503c\uff0c\u6211\u5728stata\u91cc\u9762\u5220\u6389\u7f3a\u5931\u6837\u672c\u540e\u7684\u6570\u636e\u7528\u4e0b\u9762\u7684\u7a0b\u5e8f\u662f\u53ef\u4ee5\u8dd1\u7684\uff0c\u60f3\u8bf7\u95ee\u4e00\u4e0b\u5728R\u91cc\u9762\u5982\u4f55\u5728\u4e0d\u5220\u9664\u7f3a\u5931\u6837\u672c\u7684\u524d\u63d0\u4e0b\uff0c\u76f4\u63a5\u4fee\u6539\u4e0b\u9762\u7a0b\u5e8f\u6c42\u89e3\uff1a\u003Cbr\u003E\n----------------------- copy starting from the next line -----------------------\u003C\/p\u003E\n\u003Cpre data-hljs=\u0022\u0022\u003E\u003Ccode\u003E* Example generated by -dataex-. To install: ssc install dataex\nlibrary(haven)\nlibrary(summarytools)\nlibrary(matrixStats)\n\n# --- prepare data ---\n\nxtlogit_data \u0026lt;- read_dta(\u0022C:\\\\Users\\\\ThinkPad\\\\Desktop\\\\MSL for R\\\\xtlogit_data.dta\u0022)\nattach(xtlogit_data)\n\n\n# model matrix `X` and response `Y`\nX \u0026lt;- cbind(1, age , grade , not_smsa , south)\nY \u0026lt;- union\nK\u0026lt;- ncol(X)\n\n# initial guess on coefficients\n\nans_logit \u0026lt;- glm(union ~ age + grade + not_smsa + south, \n family = binomial(link = \u0022logit\u0022), \n data = xtlogit_data)\nvi \u0026lt;- c(coef(ans_logit))\n\n\n\n\n# requires model matrix `X` and binary response `Y`\nprobit.nll \u0026lt;- function (beta) {\n # linear predictor\n eta \u0026lt;- X %*% beta\n # probability\n p \u0026lt;- pnorm(eta)\n # negative log-likelihood\n -sum((1 - Y) * log(1 - p) + Y * log(p))\n}\n\n# requires model matrix `X` and binary response `Y`\nprobit.gr \u0026lt;- function (beta) {\n # linear predictor\n eta \u0026lt;- X %*% beta\n # probability\n p \u0026lt;- pnorm(eta)\n # chain rule\n u \u0026lt;- dnorm(eta) * (Y - p) \/ (p * (1 - p))\n # gradient\n -crossprod(X, u)\n}\n\nfit \u0026lt;- optim(vi, probit.nll , method = \u0022BFGS\u0022, hessian = TRUE)\n# comparison\n\nfit$par\n\nend\n\u003C\/code\u003E\u003C\/pre\u003E\u003Cscript\u003Eif(\u0022undefined\u0022!==typeof hljs)hljs._ha();else if(\u0022undefined\u0022===typeof hljsLoading){hljsLoading=1;var a=document.getElementsByTagName(\u0022head\u0022)[0],e=document.createElement(\u0022link\u0022);e.type=\u0022text\/css\u0022;e.rel=\u0022stylesheet\u0022;e.href=\u0022\/\/cdn.bootcss.com\/highlight.js\/9.12.0\/styles\/github.min.css\u0022;a.appendChild(e);e=document.createElement(\u0022script\u0022);e.type=\u0022text\/javascript\u0022;e.onload=function(){var d={},f=0;hljs._hb=function(b){b.removeAttribute(\u0022data-hljs\u0022);var c=b.innerHTML;c in d?b.innerHTML=d[c]:(7\u003C++f\u0026\u0026(d={},f=0),hljs.highlightBlock(b.firstChild),d[c]=b.innerHTML)};hljs._ha=function(){for(var b=document.querySelectorAll(\u0022pre[data-hljs]\u0022),c=b.length;0\u003Cc;)hljs._hb(b.item(--c))};hljs._ha()};e.async=!0;e.src=\u0022\/\/uploads.cosx.org\/static\/hljs\/highlight.pack.js\u0022;a.appendChild(e)}\u003C\/script\u003E\n\u003Cp\u003E------------------ copy up to and including the previous line ------------------\u003C\/p\u003E\n\n\u003Cp\u003E\u6570\u636e\u5728\u4e0b\u9762\u7684\u94fe\u63a5\u5f53\u4e2d\uff1a\u94fe\u63a5\uff1a\u003Ca href=\u0022https:\/\/pan.baidu.com\/s\/1NCwt3pimR9dwXBPU1Dg0yw\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Ehttps:\/\/pan.baidu.com\/s\/1NCwt3pimR9dwXBPU1Dg0yw\u003C\/a\u003E \u63d0\u53d6\u7801\uff1ajvvf\u003Cbr\u003E\n\u671b\u5404\u4f4d\u4e0d\u541d\u8d50\u6559\uff0c\u4e0d\u80dc\u611f\u6fc0\u003C\/p\u003E \n"}},{"type":"posts","id":"11218","attributes":{"id":11218,"number":1,"createdAt":"2008-06-13T18:49:24+00:00","contentType":"comment","contentHtml":" \u6211\u770b\u5230\u7684\u7edf\u8ba1\u4e66\u4e2d\u8ba1\u7b97F\u503c\u90fd\u662f\u4e24\u4e2a\u6837\u672c\u65b9\u5dee\u7684\u6bd4,EXCEL\u7684F\u503c\u6b63\u662f\u8fd9\u6837,\u4f46SPSS\u7684F\u503c\u4e0d\u662f\u8fd9\u6837,\u7528\u7684\u662fLevene\u0027s Test,\u8bf7\u6559\u8bf8\u4f4d,\u8fd9\u4e2a\u68c0\u9a8c\u600e\u4e48\u8ba1\u7b97F\u503c?"}},{"type":"posts","id":"431931","attributes":{"id":431931,"number":1,"createdAt":"2019-06-11T02:10:57+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u5404\u4f4d\u5c11\u4fa0\u5973\u4fa0\uff1a\u003C\/p\u003E\n\n\u003Cp\u003E\u672c\u4ebaR\u8bed\u8a00\u65b0\u624b\uff0c\u5728\u6a21\u4eff\u300a\u7edf\u8ba1\u5b66--\u57fa\u4e8eR\u300b\uff08\u7b2c\u4e8c\u7248\uff09 P238\u7684\u4f8b\u30109-1\u3011\u65f6\u5019\u51fa\u73b0\u4e86\u62a5\u9519\uff1a\u003Cbr\u003E\n\u5f53\u4f7f\u7528R\u8bed\u8a00\u5c06excel \u5bfc\u5165Rstudio\u65f6\u5019\uff0c\u663e\u793a\u8868\u683c\u5217\u4e2d\u5df2\u7ecf\u6210\u529f\u5bfc\u5165\u6570\u503c\u3002 \u5982\u56fe\uff08\u8c8c\u4f3c\u8fd9\u4e2a\u7f51\u7ad9\u4e0d\u652f\u6301\u56fe\u7247\uff09\u003Cbr\u003E\n\u56fe\u7247\u89c1\u539f\u94fe\u63a5\uff1a\u003Ca href=\u0022https:\/\/ask.csdn.net\/questions\/765345\u0022 target=\u0022_blank\u0022 rel=\u0022nofollow noreferrer\u0022\u003Ehttps:\/\/ask.csdn.net\/questions\/765345\u003C\/a\u003E\u003Cbr\u003E\n\u003Cimg src=\u0022https:\/\/img-ask.csdn.net\/upload\/201906\/10\/1560174273_375314.png\u0022 title=\u0022\u0022 alt=\u0022\u0022\u003E\u003Cbr\u003E\n\u4f46\u662f \u5f53\u5c1d\u8bd5\u4f7f\u7528scatterplot\uff08\uff09\u57fa\u4e8e\u539f\u59cb\u6570\u636e\u8fdb\u884c\u7ed8\u5236\u6563\u70b9\u56fe\u7684\u65f6\u5019\u5374\u663e\u793a \u201c\u5e7f\u544a\u652f\u51fa\u201d\u4e00\u5217\u627e\u4e0d\u5230\uff08\u003Cstrong\u003E\u62a5\u9519\uff1aError in eval(predvars, data, env) : object \u0027\u5e7f\u544a\u652f\u51fa\u0027 not found\u003C\/strong\u003E\uff09\u003Cbr\u003E\n\u6211\u7684\u4ee3\u7801\u5982\u4e0b\uff1a\u003Cbr\u003E\n\u003Ccode\u003Escatterplot(\u9500\u552e\u6536\u5165~\u5e7f\u544a\u652f\u51fa,data=table_9_1,spread=FALSE,pch=19,xlab=\u0022\u5e7f\u544a\u652f\u51fa\u0022,ylab=\u0022\u9500\u552e\u6536\u5165\u0022,cex.lab=0.8)\u003C\/code\u003E\u003Cbr\u003E\n\u6c42\u9ad8\u624b\u6307\u70b9\u8ff7\u6d25\u3002\u003C\/p\u003E\n\n\u003Cp\u003E\u62a5\u62f3\u003C\/p\u003E"}},{"type":"posts","id":"431864","attributes":{"id":431864,"number":1,"createdAt":"2019-06-04T09:45:51+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u5927\u5bb6\u597d\uff1a \u672c\u4eba\u6700\u8fd1\u5728\u5b66\u4e60\u8d3e\u5e73\u4fca\u7684 \u300a\u7edf\u8ba1\u5b66 -\u57fa\u4e8eR \u300b \uff08\u7b2c\u4e8c\u7248\uff09 \u003Cbr\u003E\n\u5728P162 \u9875 \u4f8b\u98986-3\uff1a\u6839\u636e\u6700\u8fd1\u4e00\u6bb5\u65f6\u95f4\u768440\u6b21\u7a7a\u6c14\u68c0\u6d4b\u7ed3\u679c \u68c0\u9a8c\u8be5\u57ce\u5e02PM2.5\u662f\u5426\u663e\u8457\u4f4e\u4e8e\u5747\u503c\u003C\/p\u003E\n\n\u003Cp\u003E\u6211\u7684\u4ee3\u7801\u5982\u4e0b\u003C\/p\u003E\n\n\u003Cp\u003Elibrary(BSDA)\u003Cbr\u003E\nz.test(table_6_3$PM2.5\u503c,mu=81,sigma.x=sd(table_6_3$PM2.5\u503c),alternative=\u0022less\u0022,conf.level=0.95)\u003C\/p\u003E\n\n\u003Cp\u003E\u5176\u4e2d\u7684table_6_3\u662f\u81ea\u5efa\u8868\u683c \u5982\u56fe\uff1a\u003C\/p\u003E\n\n\u003Cp\u003Etable_6_3\u003Cbr\u003E\nX1 X2 X3 X4 X5 X6 X7 X8\u003Cbr\u003E\n1 82.6 74.7 79.9 87.5 73.8 79.8 87.0 68.3\u003Cbr\u003E\n2 68.5 78.0 86.2 76.9 75.7 89.9 80.2 85.1\u003Cbr\u003E\n3 85.1 89.2 77.7 57.5 65.3 80.2 74.7 68.8\u003Cbr\u003E\n4 97.6 75.0 80.1 76.6 85.1 76.1 81.6 72.5\u003Cbr\u003E\n5 93.5 77.8 80.7 84.5 77.3 83.3 82.2 85.5\u003C\/p\u003E\n\n\u003Cp\u003E\u8fd0\u884c\u540e\u7cfb\u7edf\u62a5\u9519\uff1a\u003Cbr\u003E\nError in z.test(table_6_3$PM2.5\u503c, mu = 81, sigma.x = sd(table_6_3$PM2.5\u503c), : \u003Cbr\u003E\nnot enough x observations\u003Cbr\u003E\n\u8bf7\u95ee\u8fd9\u662f\u4e3a\u4ec0\u4e48\uff0c\u4ee5\u53ca\u600e\u4e48\u7834 \u975e\u5e38\u611f\u8c22\uff01\u003C\/p\u003E\n"}},{"type":"posts","id":"431928","attributes":{"id":431928,"number":1,"createdAt":"2019-06-10T21:46:49+00:00","contentType":"comment","contentHtml":"\u003Cp\u003E\u4eca\u5929\u5347\u7ea7R3.6\uff0c\u987a\u4fbf\u66f4\u65b0\u4e86dplyr,purrr,stringr,stringi\u7b49\u5305\uff0c\u7136\u540e\u7f16\u8bd1\u4e86\u81ea\u5df1\u7684\u5de5\u5177\u5305mypkg,\u7ed3\u679cmypkg\u4e2d\u6253\u5305\u7684\u6570\u636e\u4e2d\u6587\u53d8\u6210\u4e86\u4e71\u7801\uff0c\u540e\u7eed\u7684\u5f88\u591a\u7a0b\u5e8f\u90fd\u4e0d\u80fd\u8fd0\u884c\u4e86\uff0c\u4e0d\u77e5\u90533.6\u5728\u7f16\u7801\u65b9\u9762\u6709\u4ec0\u4e48\u65b0\u7684\u53d8\u5316\uff0c\u5728windows\u4e0b\u6709\u6ca1\u6709\u4ec0\u4e48\u53c2\u6570\u53ef\u4ee5\u8bbe\u7f6e\uff1f 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