{"id":463,"date":"2023-07-29T19:58:01","date_gmt":"2023-07-29T19:58:01","guid":{"rendered":"https:\/\/statorials.org\/ar\/%d9%83%d9%8a%d9%81%d9%8a%d8%a9-%d8%a7%d9%95%d8%b9%d8%a7%d8%af%d8%a9-%d8%aa%d8%b3%d9%85%d9%8a%d8%a9-%d8%a7%d9%94%d8%b9%d9%85%d8%af%d8%a9-%d8%a7%d9%95%d8%b7%d8%a7%d8%b1-%d8%a7%d9%84%d8%a8%d9%8a%d8%a7\/"},"modified":"2023-07-29T19:58:01","modified_gmt":"2023-07-29T19:58:01","slug":"%d9%83%d9%8a%d9%81%d9%8a%d8%a9-%d8%a7%d9%95%d8%b9%d8%a7%d8%af%d8%a9-%d8%aa%d8%b3%d9%85%d9%8a%d8%a9-%d8%a7%d9%94%d8%b9%d9%85%d8%af%d8%a9-%d8%a7%d9%95%d8%b7%d8%a7%d8%b1-%d8%a7%d9%84%d8%a8%d9%8a%d8%a7","status":"publish","type":"post","link":"https:\/\/statorials.org\/ar\/%d9%83%d9%8a%d9%81%d9%8a%d8%a9-%d8%a7%d9%95%d8%b9%d8%a7%d8%af%d8%a9-%d8%aa%d8%b3%d9%85%d9%8a%d8%a9-%d8%a7%d9%94%d8%b9%d9%85%d8%af%d8%a9-%d8%a7%d9%95%d8%b7%d8%a7%d8%b1-%d8%a7%d9%84%d8%a8%d9%8a%d8%a7\/","title":{"rendered":"\u0643\u064a\u0641\u064a\u0629 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0623\u0639\u0645\u062f\u0629 \u0625\u0637\u0627\u0631 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0641\u064a r"},"content":{"rendered":"

<\/p>\n

\n

\u064a\u0634\u0631\u062d \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0627\u0644\u062a\u0639\u0644\u064a\u0645\u064a \u0643\u064a\u0641\u064a\u0629 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0623\u0639\u0645\u062f\u0629 \u0625\u0637\u0627\u0631 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0641\u064a \u0644\u063a\u0629 R \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u062c\u0645\u0648\u0639\u0629 \u0645\u062a\u0646\u0648\u0639\u0629 \u0645\u0646 \u0627\u0644\u0623\u0633\u0627\u0644\u064a\u0628 \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629.<\/span><\/p>\n

\u0644\u0643\u0644 \u0645\u0646 \u0647\u0630\u0647 \u0627\u0644\u0623\u0645\u062b\u0644\u0629\u060c \u0633\u0646\u0639\u0645\u0644 \u0645\u0639 \u0645\u062c\u0645\u0648\u0639\u0629 \u0628\u064a\u0627\u0646\u0627\u062a mtcars<\/strong> \u0627\u0644\u0645\u0636\u0645\u0646\u0629 \u0641\u064a R.<\/span><\/p>\n

\u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 n<\/em> \u0627\u0644\u0623\u0648\u0644\u0649 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 Base R<\/span><\/strong><\/h2>\n

\u064a\u0648\u062c\u062f \u0625\u062c\u0645\u0627\u0644\u064a 11 \u0627\u0633\u0645\u064b\u0627 \u0644\u0644\u0623\u0639\u0645\u062f\u0629 \u0641\u064a<\/span> mtcars:<\/span><\/strong><\/p>\n

 #view column names of mtcars<\/span>\nnames(mtcars)\n\n# [1] \"mpg\" \"cyl\" \"disp\" \"hp\" \"drat\" \"wt\" \"qsec\" \"vs\" \"am\" \"gear\"\n# [11] \u201ccarb\u201d<\/strong><\/pre>\n
 \u0644\u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0623\u0631\u0628\u0639\u0629 \u0627\u0644\u0623\u0648\u0644\u0649\u060c \u064a\u0645\u0643\u0646\u0643 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0628\u0646\u0627\u0621 \u0627\u0644\u062c\u0645\u0644\u0629 \u0627\u0644\u062a\u0627\u0644\u064a:<\/span><\/p>\n
 #rename first 4 columns<\/span>\nnames(mtcars) <- c(\"miles_gallon\", \"cylinders\", \"display\", \"horsepower\")\nnames(mtcars)\n\n#[1] \"miles_gallon\" \"cylinders\" \"display\" \"horsepower\" NA \n#[6] NA NA NA NA NA \n#[11] NA<\/strong><\/pre>\n
 \u0644\u0627\u062d\u0638 \u0623\u0646 R \u064a\u0628\u062f\u0623 \u0628\u0627\u0633\u0645 \u0627\u0644\u0639\u0645\u0648\u062f \u0627\u0644\u0623\u0648\u0644 \u0648\u064a\u0639\u064a\u062f \u062a\u0633\u0645\u064a\u0629 \u0623\u064a \u0639\u062f\u062f \u0645\u0646 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u062a\u064a \u062a\u0642\u062f\u0645\u0647\u0627. \u0641\u064a \u0647\u0630\u0627 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0646\u0638\u0631\u064b\u0627 \u0644\u0648\u062c\u0648\u062f 11 \u0627\u0633\u0645\u064b\u0627 \u0644\u0644\u0623\u0639\u0645\u062f\u0629 \u0648\u0642\u0645\u0646\u0627 \u0628\u062a\u0648\u0641\u064a\u0631 4 \u0623\u0633\u0645\u0627\u0621 \u0623\u0639\u0645\u062f\u0629 \u0641\u0642\u0637\u060c \u062a\u0645\u062a \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0623\u0631\u0628\u0639\u0629 \u0627\u0644\u0623\u0648\u0644\u0649 \u0641\u0642\u0637. \u0644\u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u062c\u0645\u064a\u0639 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0623\u062d\u062f \u0639\u0634\u0631\u060c \u0633\u0646\u062d\u062a\u0627\u062c \u0625\u0644\u0649 \u062a\u0648\u0641\u064a\u0631 \u0645\u062a\u062c\u0647 \u0644\u0623\u0633\u0645\u0627\u0621 11 \u0639\u0645\u0648\u062f\u064b\u0627.<\/span><\/p>\n
 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629  <\/em> \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0628\u0627\u0644\u0627\u0633\u0645 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 Base R<\/span><\/strong><\/h2>\n
 \u0625\u0630\u0627 \u0623\u0631\u062f\u0646\u0627 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0639\u0645\u0648\u062f \u0645\u0639\u064a\u0646 \u0641\u064a \u0645\u062c\u0645\u0648\u0639\u0629 \u0628\u064a\u0627\u0646\u0627\u062a mtcars<\/strong> \u060c \u0645\u062b\u0644 \u0627\u0644\u0639\u0645\u0648\u062f “wt”\u060c \u0641\u064a\u0645\u0643\u0646\u0646\u0627 \u0627\u0644\u0642\u064a\u0627\u0645 \u0628\u0630\u0644\u0643 \u0628\u0627\u0644\u0627\u0633\u0645:<\/span><\/p>\n
 #rename just the \"wt\" column in mtcars<\/span>\nnames(mtcars)[names(mtcars)==\"wt\"] <- \"weight\"\nnames(mtcars)\n\n#[1] \"mpg\" \"cyl\" \"disp\" \"hp\" \"drat\" \"weight\" \"qsec\" \"vs\" \n#[9] \"am\" \"gear\" \"carb\"<\/strong><\/pre>\n
 \u0644\u0627\u062d\u0638 \u0623\u0646\u0647 \u062a\u0645\u062a \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0639\u0645\u0648\u062f “\u0627\u0644\u0648\u0632\u0646” \u0641\u0642\u0637 \u0625\u0644\u0649 “\u0627\u0644\u0648\u0632\u0646” \u0648\u0623\u0646 \u062c\u0645\u064a\u0639 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0623\u062e\u0631\u0649 \u062a\u062d\u062a\u0641\u0638 \u0628\u0623\u0633\u0645\u0627\u0626\u0647\u0627 \u0627\u0644\u0623\u0635\u0644\u064a\u0629.<\/span><\/p>\n
 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629  <\/em> \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u062d\u0633\u0628 \u0627\u0644\u0641\u0647\u0631\u0633 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 Base R<\/span><\/strong><\/h2>\n
 \u064a\u0645\u0643\u0646\u0646\u0627 \u0623\u064a\u0636\u064b\u0627 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0639\u0645\u0648\u062f \u0645\u0639\u064a\u0646 \u0641\u064a \u0645\u062c\u0645\u0648\u0639\u0629 \u0628\u064a\u0627\u0646\u0627\u062a mtcars<\/strong> \u062d\u0633\u0628 \u0627\u0644\u0641\u0647\u0631\u0633. \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0625\u0644\u064a\u0643 \u0643\u064a\u0641\u064a\u0629 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0627\u0633\u0645 \u0627\u0644\u0639\u0645\u0648\u062f \u0627\u0644\u062b\u0627\u0646\u064a “cyl” \u062d\u0633\u0628 \u0627\u0644\u0641\u0647\u0631\u0633:<\/span><\/p>\n
 #rename the second column name in mtcars<\/span>\nnames(mtcars)[2] <- \"cylinders\"\nnames(mtcars)\n\n# [1] \"mpg\" \"cylinders\" \"disp\" \"hp\" \"drat\" \"wt\" \n# [7] \"qsec\" \"vs\" \"am\" \"gear\" \"carb\"<\/strong><\/pre>\n
 \u0644\u0627\u062d\u0638 \u0623\u0646\u0647 \u062a\u0645\u062a \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0627\u0644\u0639\u0645\u0648\u062f “cyl” \u0641\u0642\u0637 \u0625\u0644\u0649 “cylinders” \u0648\u0623\u0646 \u0643\u0627\u0641\u0629 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0627\u0644\u0623\u062e\u0631\u0649 \u062a\u062d\u062a\u0641\u0638 \u0628\u0623\u0633\u0645\u0627\u0626\u0647\u0627 \u0627\u0644\u0623\u0635\u0644\u064a\u0629.<\/span><\/p>\n
 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629  <\/em> \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 dplyr<\/span><\/strong><\/h2>\n
 \u0647\u0646\u0627\u0643 \u0637\u0631\u064a\u0642\u0629 \u0623\u062e\u0631\u0649 \u0644\u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0641\u064a R \u0648\u0647\u064a \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062f\u0627\u0644\u0629 rename()<\/strong> \u0641\u064a \u0627\u0644\u062d\u0632\u0645\u0629 dplyr<\/strong> . \u0628\u0646\u0627\u0621 \u0627\u0644\u062c\u0645\u0644\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0644\u0644\u0642\u064a\u0627\u0645 \u0628\u0630\u0644\u0643 \u0647\u0648:<\/span><\/p>\n
 data %>% rename(new_name1 = old_name1, new_name2 = old_name2, ....)<\/strong><\/pre>\n
 \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0625\u0644\u064a\u0643 \u0643\u064a\u0641\u064a\u0629 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0623\u0633\u0645\u0627\u0621 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 “mpg” \u0648”cyl” \u0641\u064a \u0645\u062c\u0645\u0648\u0639\u0629 \u0628\u064a\u0627\u0646\u0627\u062a mtcars<\/strong> :<\/span><\/p>\n
 #install (if not already installed) and load dplyr package<\/span>\nif(!require(dplyr)){install.packages('dplyr')}\n\n#rename the \"mpg\" and \"cyl\" columns\n<\/span>new_mtcars <- mtcars %>% \n                rename(\n                  miles_g = mpg,\n                  cylinder = cyl\n                  )\n\n#view new column names\n<\/span>names(new_mtcars)\n\n# [1] \"miles_g\" \"cylinder\" \"disp\" \"hp\" \"drat\" \"wt\" \n# [7] \"qsec\" \"vs\" \"am\" \"gear\" \"carb\"<\/strong><\/pre>\n
 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0647\u0630\u0627 \u0627\u0644\u0623\u0633\u0644\u0648\u0628\u060c \u064a\u0645\u0643\u0646\u0643 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0623\u064a \u0639\u062f\u062f \u062a\u0631\u064a\u062f\u0647 \u0645\u0646 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0645\u0631\u0629 \u0648\u0627\u062d\u062f\u0629.<\/span><\/p>\n
 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629  <\/em> \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 data.table<\/span><\/strong><\/h2>\n
 \u0647\u0646\u0627\u0643 \u0637\u0631\u064a\u0642\u0629 \u0623\u062e\u0631\u0649 \u0644\u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0641\u064a R \u0648\u0647\u064a \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062f\u0627\u0644\u0629 setnames()<\/strong> \u200e \u0641\u064a \u0627\u0644\u062d\u0632\u0645\u0629 data.table<\/b> . \u0628\u0646\u0627\u0621 \u0627\u0644\u062c\u0645\u0644\u0629 \u0627\u0644\u0623\u0633\u0627\u0633\u064a \u0644\u0644\u0642\u064a\u0627\u0645 \u0628\u0630\u0644\u0643 \u0647\u0648:<\/span><\/p>\n
 setnames(data, old=c(\"old_name1\",\"old_name2\"), new=c(\"new_name1\", \"new_name2\"))<\/strong><\/pre>\n
 \u0639\u0644\u0649 \u0633\u0628\u064a\u0644 \u0627\u0644\u0645\u062b\u0627\u0644\u060c \u0625\u0644\u064a\u0643 \u0643\u064a\u0641\u064a\u0629 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0623\u0633\u0645\u0627\u0621 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 “mpg” \u0648”cyl” \u0641\u064a \u0645\u062c\u0645\u0648\u0639\u0629 \u0628\u064a\u0627\u0646\u0627\u062a mtcars<\/strong> :<\/span><\/p>\n
 #install (if not already installed) and load data.table package\nif(!require(data.table)){install.packages('data.table')}<\/span>\n<\/span>\n#rename \"mpg\" and \"cyl\" column names in mtcars\n<\/span>setnames(mtcars, old=c(\"mpg\",\"cyl\"), new=c(\"miles_g\", \"cylinder\"))\n\n#view new column names\n<\/span>names(mtcars)\n\n#[1] \"miles_g\" \"cylinder\" \"disp\" \"hp\" \"drat\" \"wt\" \n#[7] \"qsec\" \"vs\" \"am\" \"gear\" \"carb\"<\/strong><\/pre>\n
 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0647\u0630\u0627 \u0627\u0644\u0623\u0633\u0644\u0648\u0628\u060c \u064a\u0645\u0643\u0646\u0643 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0623\u064a \u0639\u062f\u062f \u062a\u0631\u064a\u062f\u0647 \u0645\u0646 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 \u0645\u0631\u0629 \u0648\u0627\u062d\u062f\u0629.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"
\u064a\u0634\u0631\u062d \u0647\u0630\u0627 \u0627\u0644\u0628\u0631\u0646\u0627\u0645\u062c \u0627\u0644\u062a\u0639\u0644\u064a\u0645\u064a \u0643\u064a\u0641\u064a\u0629 \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0623\u0639\u0645\u062f\u0629 \u0625\u0637\u0627\u0631 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a \u0641\u064a \u0644\u063a\u0629 R \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u062c\u0645\u0648\u0639\u0629 \u0645\u062a\u0646\u0648\u0639\u0629 \u0645\u0646 \u0627\u0644\u0623\u0633\u0627\u0644\u064a\u0628 \u0627\u0644\u0645\u062e\u062a\u0644\u0641\u0629. \u0644\u0643\u0644 \u0645\u0646 \u0647\u0630\u0647 \u0627\u0644\u0623\u0645\u062b\u0644\u0629\u060c \u0633\u0646\u0639\u0645\u0644 \u0645\u0639 \u0645\u062c\u0645\u0648\u0639\u0629 \u0628\u064a\u0627\u0646\u0627\u062a mtcars \u0627\u0644\u0645\u0636\u0645\u0646\u0629 \u0641\u064a R. \u0625\u0639\u0627\u062f\u0629 \u062a\u0633\u0645\u064a\u0629 \u0627\u0644\u0623\u0639\u0645\u062f\u0629 n 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