{"id":196,"date":"2025-07-16T10:44:03","date_gmt":"2025-07-16T02:44:03","guid":{"rendered":"https:\/\/www.hgfwq.com\/blog\/?p=196"},"modified":"2025-07-16T10:44:03","modified_gmt":"2025-07-16T02:44:03","slug":"r%e8%af%ad%e8%a8%80%e8%af%bb%e5%8f%96csv%e6%96%87%e4%bb%b6%e7%9a%84%e5%ae%8c%e6%95%b4%e6%8c%87%e5%8d%97%e4%b8%8e%e6%ad%a5%e9%aa%a4%e8%a7%a3%e6%9e%90","status":"publish","type":"post","link":"https:\/\/www.hgfwq.com\/blog\/196.html","title":{"rendered":"R\u8bed\u8a00\u8bfb\u53d6CSV\u6587\u4ef6\u7684\u5b8c\u6574\u6307\u5357\u4e0e\u6b65\u9aa4\u89e3\u6790"},"content":{"rendered":"<p><p>\u5728R\u8bed\u8a00\u4e2d\u8bfb\u53d6CSV\u6587\u4ef6\u662f\u4e00\u9879\u57fa\u7840\u4e14\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u5bf9\u4e8e\u6570\u636e\u5206\u6790\u548c\u6570\u636e\u79d1\u5b66\u9879\u76ee\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u5411\u60a8\u5c55\u793a\u5982\u4f55\u4f7f\u7528R\u8bed\u8a00\u8bfb\u53d6CSV\u6587\u4ef6\uff0c\u5e76\u63d0\u4f9b\u4e86\u8be6\u7ec6\u7684\u64cd\u4f5c\u6b65\u9aa4\u548c\u6280\u672f\u8bf4\u660e\u3002<\/p>\n<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/www.hgfwq.com\/blog\/wp-content\/uploads\/2025\/07\/Sn4PqV.jpg\" alt=\"R\u8bed\u8a00\u8bfb\u53d6CSV\u6587\u4ef6\u7684\u5b8c\u6574\u6307\u5357\u4e0e\u6b65\u9aa4\u89e3\u6790\" title=\"R\u8bed\u8a00\u8bfb\u53d6CSV\u6587\u4ef6\u7684\u5b8c\u6574\u6307\u5357\u4e0e\u6b65\u9aa4\u89e3\u6790\"><\/p>\n<\/p>\n<p><h2>\u4efb\u52a1\u63cf\u8ff0<\/h2>\n<\/p>\n<p><p>\u672c\u4efb\u52a1\u7684\u76ee\u6807\u662f\u4f7f\u7528R\u8bed\u8a00\u8bfb\u53d6\u4e00\u4e2aCSV\u6587\u4ef6\uff0c\u5e76\u5c06\u5176\u5185\u5bb9\u5bfc\u5165\u5230R\u73af\u5883\u4e2d\uff0c\u4ee5\u4fbf\u8fdb\u884c\u540e\u7eed\u7684\u6570\u636e\u5206\u6790\u3002<\/p>\n<\/p>\n<p><h2>\u64cd\u4f5c\u524d\u7684\u51c6\u5907<\/h2>\n<\/p>\n<p><p>\u5728\u5f00\u59cb\u4e4b\u524d\uff0c\u8bf7\u786e\u4fdd\u60a8\u5df2\u5b89\u88c5R\u8bed\u8a00\u73af\u5883\u3002\u5982\u679c\u60a8\u8fd8\u6ca1\u6709\u5b89\u88c5\uff0c\u53ef\u4ee5\u4eceR\u8bed\u8a00\u7684\u5b98\u65b9\u7f51\u7ad9\u4e0b\u8f7d\u5e76\u5b89\u88c5\u3002\u540c\u65f6\uff0c\u60a8\u9700\u8981\u51c6\u5907\u4e00\u4e2aCSV\u6587\u4ef6\u7528\u4e8e\u8bfb\u53d6\u3002CSV\u6587\u4ef6\u901a\u5e38\u4ee5.csv\u4e3a\u6269\u5c55\u540d\uff0c\u5176\u4e2d\u5305\u542b\u4ee5\u9017\u53f7\u5206\u9694\u7684\u503c\u3002<\/p>\n<\/p>\n<p><h2>\u5b8c\u6210\u4efb\u52a1\u7684\u8be6\u7ec6\u64cd\u4f5c\u6b65\u9aa4<\/h2>\n<\/p>\n<p><h3>1. \u52a0\u8f7d\u5fc5\u8981\u7684\u5e93<\/h3>\n<\/p>\n<p><p>\u5728R\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u4f7f\u7528`readr`\u5305\u6765\u8bfb\u53d6CSV\u6587\u4ef6\uff0c\u56e0\u4e3a\u5b83\u63d0\u4f9b\u4e86\u7b80\u5355\u4e14\u529f\u80fd\u5f3a\u5927\u7684\u529f\u80fd\u3002<\/p>\n<\/p>\n<p><pre><code>install.packages(\"readr\")<\/p>\r\n<p>library(readr)<\/code><\/pre>\n<\/p>\n<p><h3>2. \u8bfb\u53d6CSV\u6587\u4ef6<\/h3>\n<\/p>\n<p><p>\u4f7f\u7528`read_csv`\u51fd\u6570\u8bfb\u53d6CSV\u6587\u4ef6\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n<p><pre><code>data <- read_csv(\"path_to_your_file.csv\")<\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u91cc\uff0c`path_to_your_file.csv`\u662f\u60a8\u8981\u8bfb\u53d6\u7684CSV\u6587\u4ef6\u7684\u8def\u5f84\u3002<\/p>\n<\/p>\n<p><h3>3. \u67e5\u770b\u6570\u636e\u7ed3\u6784<\/h3>\n<\/p>\n<p><p>\u4f7f\u7528`str`\u51fd\u6570\u67e5\u770b\u6570\u636e\u7ed3\u6784\uff0c\u4e86\u89e3\u6570\u636e\u4e2d\u5305\u542b\u7684\u5217\u548c\u5b83\u4eec\u7684\u6570\u636e\u7c7b\u578b\u3002<\/p>\n<\/p>\n<p><pre><code>str(data)<\/code><\/pre>\n<\/p>\n<p><h3>4. \u9009\u62e9\u7279\u5b9a\u5217<\/h3>\n<\/p>\n<p><p>\u5982\u679c\u60a8\u53ea\u9700\u8981\u7279\u5b9a\u7684\u5217\uff0c\u53ef\u4ee5\u4f7f\u7528\u5217\u540d\u6765\u9009\u62e9\u5b83\u4eec\u3002<\/p>\n<\/p>\n<p><pre><code>selected_data <- data %>%<\/p>\r\n<p>  select(column1, column2)<\/code><\/pre>\n<\/p>\n<p><p>\u8fd9\u91cc\uff0c`column1`\u548c`column2`\u662f\u60a8\u60f3\u8981\u9009\u62e9\u7684\u5217\u540d\u3002<\/p>\n<\/p>\n<p><h3>5. \u6570\u636e\u6e05\u6d17<\/h3>\n<\/p>\n<p><p>\u5728\u8bfb\u53d6\u6570\u636e\u540e\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u8fdb\u884c\u4e00\u4e9b\u6570\u636e\u6e05\u6d17\u5de5\u4f5c\uff0c\u6bd4\u5982\u53bb\u9664\u7f3a\u5931\u503c\u3001\u53bb\u9664\u91cd\u590d\u503c\u7b49\u3002<\/p>\n<\/p>\n<p><pre><code>cleaned_data <- data %>%<\/p>\r\n<p>  drop_na() %>%  \u53bb\u9664\u7f3a\u5931\u503c<\/p>\r\n<p>  distinct()     \u53bb\u9664\u91cd\u590d\u503c<\/code><\/pre>\n<\/p>\n<p><h2>\u6d89\u53ca\u7684\u5173\u952e\u547d\u4ee4\u3001\u4ee3\u7801\u6216\u914d\u7f6e\u793a\u4f8b<\/h2>\n<\/p>\n<ul>\n<li>\u5b89\u88c5\u5305\uff1a`install.packages(\"readr\")`<\/li>\n<li>\u52a0\u8f7d\u5305\uff1a`library(readr)`<\/li>\n<li>\u8bfb\u53d6CSV\u6587\u4ef6\uff1a`read_csv(\"path_to_your_file.csv\")`<\/li>\n<li>\u67e5\u770b\u6570\u636e\u7ed3\u6784\uff1a`str(data)`<\/li>\n<li>\u9009\u62e9\u7279\u5b9a\u5217\uff1a`select(column1, column2)`<\/li>\n<li>\u6570\u636e\u6e05\u6d17\uff1a`drop_na()`\u3001`distinct()`<\/li>\n<\/ul>\n<p><h2>\u5bf9\u547d\u4ee4\u3001\u4ee3\u7801\u6216\u91cd\u8981\u6982\u5ff5\u7684\u6e05\u6670\u89e3\u91ca<\/h2>\n<\/p>\n<p><p>\u5728\u4e0a\u8ff0\u6b65\u9aa4\u4e2d\uff0c`read_csv`\u51fd\u6570\u662f\u8bfb\u53d6CSV\u6587\u4ef6\u7684\u5173\u952e\u547d\u4ee4\uff0c\u5b83\u9700\u8981\u63d0\u4f9bCSV\u6587\u4ef6\u7684\u8def\u5f84\u3002`str`\u51fd\u6570\u7528\u4e8e\u67e5\u770b\u6570\u636e\u7ed3\u6784\uff0c\u8fd9\u6709\u52a9\u4e8e\u4e86\u89e3\u6570\u636e\u7684\u5e03\u5c40\u548c\u5185\u5bb9\u3002`select`\u51fd\u6570\u7528\u4e8e\u9009\u62e9\u7279\u5b9a\u7684\u5217\uff0c\u800c`drop_na`\u548c`distinct`\u51fd\u6570\u7528\u4e8e\u6570\u636e\u6e05\u6d17\uff0c\u786e\u4fdd\u6570\u636e\u8d28\u91cf\u3002<\/p>\n<\/p>\n<p><h2>\u64cd\u4f5c\u8fc7\u7a0b\u4e2d\u53ef\u80fd\u9047\u5230\u7684\u95ee\u9898\u3001\u6ce8\u610f\u4e8b\u9879\u6216\u76f8\u5173\u7684\u5b9e\u7528\u6280\u5de7<\/h2>\n<\/p>\n<ul>\n<li><strong>\u8def\u5f84\u95ee\u9898<\/strong>\uff1a\u786e\u4fddCSV\u6587\u4ef6\u7684\u8def\u5f84\u6b63\u786e\u65e0\u8bef\uff0c\u5305\u62ec\u6587\u4ef6\u540d\u548c\u6269\u5c55\u540d\u3002<\/li>\n<li><strong>\u6570\u636e\u683c\u5f0f<\/strong>\uff1a\u6ce8\u610fCSV\u6587\u4ef6\u4e2d\u7684\u6570\u636e\u683c\u5f0f\uff0c\u4f8b\u5982\u662f\u5426\u5305\u542b\u5f15\u53f7\u3001\u5206\u9694\u7b26\u7b49\u3002<\/li>\n<li><strong>\u9519\u8bef\u5904\u7406<\/strong>\uff1a\u5728\u4f7f\u7528`read_csv`\u51fd\u6570\u65f6\uff0c\u5982\u679c\u9047\u5230\u9519\u8bef\uff0c\u53ef\u4ee5\u4f7f\u7528`stop_forwarning()`\u6765\u505c\u6b62\u8b66\u544a\u4fe1\u606f\u7684\u663e\u793a\u3002<\/li>\n<li><strong>\u6027\u80fd\u4f18\u5316<\/strong>\uff1a\u5bf9\u4e8e\u5927\u578bCSV\u6587\u4ef6\uff0c\u8003\u8651\u4f7f\u7528`data.table`\u5305\u6765\u63d0\u9ad8\u8bfb\u53d6\u901f\u5ea6\u3002<\/li>\n<\/ul>\n<p><p>\u901a\u8fc7\u4ee5\u4e0a\u6b65\u9aa4\uff0c\u60a8\u73b0\u5728\u5e94\u8be5\u80fd\u591f\u4f7f\u7528R\u8bed\u8a00\u8bfb\u53d6CSV\u6587\u4ef6\u5e76\u8fdb\u884c\u6570\u636e\u5904\u7406\u4e86\u3002\u795d\u60a8\u64cd\u4f5c\u987a\u5229\uff01<\/p>\n<\/p>\n<p>```<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728R\u8bed\u8a00\u4e2d\u8bfb\u53d6CSV\u6587\u4ef6\u662f\u4e00\u9879\u57fa\u7840\u4e14\u5e38\u89c1\u7684\u64cd\u4f5c\uff0c\u5bf9\u4e8e\u6570\u636e\u5206\u6790\u548c\u6570\u636e\u79d1\u5b66\u9879\u76ee\u81f3\u5173\u91cd\u8981\u3002\u672c\u6587\u5c06\u5411\u60a8\u5c55\u793a\u5982\u4f55\u4f7f\u7528R\u8bed\u8a00\u8bfb\u53d6CSV\u6587\u4ef6\uff0c\u5e76\u63d0\u4f9b\u4e86\u8be6\u7ec6\u7684\u64cd\u4f5c\u6b65\u9aa4\u548c\u6280\u672f\u8bf4\u660e\u3002 \u4efb\u52a1\u63cf\u8ff0 \u672c\u4efb\u52a1\u7684\u76ee\u6807\u662f\u4f7f\u7528R\u8bed\u8a00\u8bfb\u53d6\u4e00\u4e2aCSV\u6587\u4ef6\uff0c\u5e76\u5c06\u5176\u5185\u5bb9\u5bfc\u5165\u5230R\u73af\u5883&#8230;<\/p>\n","protected":false},"author":1,"featured_media":198,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[109,96,110],"topic":[],"class_list":["post-196","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-haiwai","tag-csv","tag-96","tag-110"],"_links":{"self":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts\/196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/comments?post=196"}],"version-history":[{"count":1,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts\/196\/revisions"}],"predecessor-version":[{"id":200,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/posts\/196\/revisions\/200"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/media\/198"}],"wp:attachment":[{"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/media?parent=196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/categories?post=196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/tags?post=196"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.hgfwq.com\/blog\/wp-json\/wp\/v2\/topic?post=196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}