{"id":3076,"date":"2023-07-19T08:19:16","date_gmt":"2023-07-19T08:19:16","guid":{"rendered":"https:\/\/statorials.org\/cn\/r-%e5%90%88%e5%b9%b6csv%e6%96%87%e4%bb%b6\/"},"modified":"2023-07-19T08:19:16","modified_gmt":"2023-07-19T08:19:16","slug":"r-%e5%90%88%e5%b9%b6csv%e6%96%87%e4%bb%b6","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/r-%e5%90%88%e5%b9%b6csv%e6%96%87%e4%bb%b6\/","title":{"rendered":"\u5982\u4f55\u5728 r \u4e2d\u5408\u5e76\u591a\u4e2a csv \u6587\u4ef6\uff08\u5206\u6b65\u793a\u4f8b\uff09"},"content":{"rendered":"

<\/p>\n

\n

\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\u5bfc\u5165\u548c\u5408\u5e76\u4f4d\u4e8e R \u4e2d\u540c\u4e00\u6587\u4ef6\u5939\u4e2d\u7684\u591a\u4e2a CSV \u6587\u4ef6\uff1a<\/span><\/span><\/p>\n

 df <- list. files<\/span> (path=' C:\/my\/path\/to\/files<\/span> ') %>% \n  lapply(read_csv) %>% \n  bind_rows\n<\/strong><\/pre>\n
\u4ee5\u4e0b\u5206\u6b65\u793a\u4f8b\u5c55\u793a\u4e86\u5982\u4f55\u5728\u5b9e\u8df5\u4e2d\u4f7f\u7528\u6b64\u8bed\u6cd5\u3002<\/span><\/p>\n
\u7b2c 1 \u6b65\uff1a\u521b\u5efa\u5e76\u5bfc\u51fa\u591a\u4e2a\u6570\u636e\u6846<\/strong><\/span><\/h3>\n
\u9996\u5148\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u521b\u5efa\u4e09\u4e2a\u6570\u636e\u6846\u5e76\u5c06\u5176\u5bfc\u51fa\u5230 CSV \u6587\u4ef6\uff1a<\/span><\/span><\/p>\n
 #create three data frames\ndf1 <- data. frame<\/span> (points=c(4, 5, 5, 6, 8, 9),\n                  assists=c(3, 2, 4, 4, 6, 3))\n\ndf2 <- data. frame<\/span> (points=c(2, 10, 14, 15),\n                  assists=c(3, 2, 9, 3))\n\ndf3 <- data. frame<\/span> (dots=c(6, 8, 9),\n                  assists=c(10, 6, 4))<\/span>\n\n#export all three data frames to CSV files\nwrite.write. csv<\/span> (df1, ' C:\/Users\/bob\/Documents\/my_data_files\/df1.csv<\/span> ', row.names<\/span> = FALSE<\/span> )\nwrite.write. csv<\/span> (df2, ' C:\/Users\/bob\/Documents\/my_data_files\/df2.csv<\/span> ', row.names<\/span> = FALSE<\/span> )\nwrite.write. csv<\/span> (df3, ' C:\/Users\/bob\/Documents\/my_data_files\/df3.csv<\/span> ', row.names<\/span> = FALSE<\/span> )\n<\/span><\/span><\/strong><\/pre>\n
\u6211\u53ef\u4ee5\u5bfc\u822a\u5230\u6b64\u6587\u4ef6\u5939\u5e76\u770b\u5230\u6240\u6709\u4e09\u4e2a CSV \u6587\u4ef6\u5747\u5df2\u6210\u529f\u5bfc\u51fa\uff1a<\/span> <\/p>\n
\"\"<\/p>\n
\u6b65\u9aa4 2\uff1a\u5bfc\u5165\u5e76\u5408\u5e76\u591a\u4e2a CSV \u6587\u4ef6<\/strong><\/span><\/h3>\n
\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u5c06\u4e09\u4e2a CSV \u6587\u4ef6\u5bfc\u5165\u5e76\u5408\u5e76\u5230 R \u4e2d\u7684\u5355\u4e2a\u6570\u636e\u6846\u4e2d\uff1a<\/span><\/span><\/p>\n
 library<\/span> (dplyr)\nlibrary<\/span> (readr)\n\n#import and merge all three CSV files into one data frame\n<\/span>df <- list. files<\/span> (path=' C:\/Users\/bob\/Documents\/my_data_files<\/span> ') %>% \n  lapply(read_csv) %>% \n  bind_rows \n\n#view resulting data frame\n<\/span>df\n\n# A tibble: 13 x 2\n   assist points\n       \n 1 4 3\n 2 5 2\n 3 5 4\n 4 6 4\n 5 8 6\n 6 9 3\n 7 2 3\n 8 10 2\n 9 14 9\n10 15 3\n11 6 10\n12 8 6\n13 9 4<\/strong><\/span><\/pre>\n
\u8bf7\u6ce8\u610f\uff0c\u4e09\u4e2a CSV \u6587\u4ef6\u5df2\u6210\u529f\u5408\u5e76\u5230\u4e00\u4e2a\u6570\u636e\u6846\u4e2d\u3002<\/span><\/p>\n
\u6211\u4eec\u53ef\u4ee5\u770b\u5230\u751f\u6210\u7684\u6570\u636e\u6846\u6709 13 \u884c 2 \u5217\u3002<\/span><\/p>\n
\u6ce8\u610f<\/strong>\uff1a\u5982\u679c\u6570\u636e\u6846\u6ca1\u6709\u5339\u914d\u7684\u5217\u540d\uff0cR \u5c06\u59cb\u7ec8\u5408\u5e76\u6240\u6709\u6570\u636e\u6846\u5e76\u7b80\u5355\u5730\u7528NA<\/strong>\u503c\u586b\u5145\u7f3a\u5931\u503c\u3002<\/span><\/p>\n
\u5176\u4ed6\u8d44\u6e90<\/strong><\/span><\/h3>\n
\u4ee5\u4e0b\u6559\u7a0b\u89e3\u91ca\u4e86\u5982\u4f55\u5728 R \u4e2d\u4f7f\u7528\u5176\u4ed6\u6587\u4ef6\u7c7b\u578b\uff1a<\/span><\/p>\n
\u5982\u4f55\u5c06Excel\u6587\u4ef6\u5bfc\u5165\u5230R\u4e2d<\/a>
\u5982\u4f55\u5c06 TSV \u6587\u4ef6\u5bfc\u5165 R<\/a>
\u5982\u4f55\u5c06 Zip \u6587\u4ef6\u5bfc\u5165\u5230 R \u4e2d<\/a>
\u5982\u4f55\u5c06 SAS \u6587\u4ef6\u5bfc\u5165 R<\/a>
\u5982\u4f55\u5c06 .dta \u6587\u4ef6\u5bfc\u5165 R<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u57fa\u672c\u8bed\u6cd5\u5bfc\u5165\u548c\u5408\u5e76\u4f4d\u4e8e R \u4e2d\u540c\u4e00\u6587\u4ef6\u5939\u4e2d\u7684\u591a\u4e2a CSV \u6587\u4ef6\uff1a df <- list.  […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[],"class_list":["post-3076","post","type-post","status-publish","format-standard","hentry","category-11"],"yoast_head":"\n\u5982\u4f55\u5728 R \u4e2d\u5408\u5e76\u591a\u4e2a CSV \u6587\u4ef6\uff08\u5206\u6b65\u793a\u4f8b\uff09- Statorials<\/title>\n<meta name=\"description\" content=\"\u672c\u6559\u7a0b\u4ecb\u7ecd\u5982\u4f55\u5728 R \u4e2d\u5408\u5e76\u591a\u4e2a CSV \u6587\u4ef6\uff0c\u5305\u62ec\u5206\u6b65\u793a\u4f8b\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/cn\/r-\u5408\u5e76csv\u6587\u4ef6\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" 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