{"id":933,"date":"2022-07-03T02:59:28","date_gmt":"2023-08-16T00:36:49","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/r%e3%81%aehead%e9%96%a2%e6%95%b0%e3%81%a8tail%e9%96%a2%e6%95%b0%e3%81%ae%e8%a9%b3%e7%b4%b0%e3%81%aa%e3%83%aa%e3%83%95%e3%82%a1%e3%83%ac%e3%83%b3%e3%82%b9%e3%80%82\/"},"modified":"2025-08-01T03:39:02","modified_gmt":"2025-07-31T18:39:02","slug":"r%e3%81%aehead%e9%96%a2%e6%95%b0%e3%81%a8tail%e9%96%a2%e6%95%b0%e3%81%ae%e8%a9%b3%e7%b4%b0%e3%81%aa%e3%83%aa%e3%83%95%e3%82%a1%e3%83%ac%e3%83%b3%e3%82%b9%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/r%e3%81%aehead%e9%96%a2%e6%95%b0%e3%81%a8tail%e9%96%a2%e6%95%b0%e3%81%ae%e8%a9%b3%e7%b4%b0%e3%81%aa%e3%83%aa%e3%83%95%e3%82%a1%e3%83%ac%e3%83%b3%e3%82%b9%e3%80%82\/","title":{"rendered":"R\u306ehead()\u95a2\u6570\u3068tail()\u95a2\u6570\u306e\u8a73\u7d30\u306a\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u3002"},"content":{"rendered":"

R\u306ehead()\u95a2\u6570\u3068tail()\u95a2\u6570\u306f\u3001\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u6700\u521d\u306en\u884c\u3068\u6700\u5f8c\u306en\u884c\u3092\u8aad\u307f\u53d6\u308b\u969b\u306b\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n

\u3042\u306a\u305f\u306f\u50cd\u304f\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3057\u3001\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3057\u3001\u521d\u5fc3\u8005\u306e\u5b66\u7fd2\u8005\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u8aad\u307f\u8fbc\u3093\u3067\u89e3\u6790\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u9762\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n

\uff12\uff10\u4ee5\u4e0a\u306e\u5217\u307e\u305f\u306f\u305d\u308c\u4ee5\u4e0a\u304c\u3042\u308a\u3001\u6570\u5343\u884c\u306e\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u6d88\u5316\u3059\u308b\u3053\u3068\u306f\u672c\u5f53\u306b\u56f0\u96e3\u3067\u3059\u3002<\/p>\n

\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001R\u306ehead()\u95a2\u6570\u3068tail()\u95a2\u6570\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u95a2\u6570\u306f\u305d\u308c\u305e\u308c\u6700\u521d\u306e n \u884c\u3068\u6700\u5f8c\u306e n \u884c\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n

\n

head()\u95a2\u6570\u3068tail()\u95a2\u6570\u306e\u69cb\u6587<\/h2>\n

\u901f\u9054\u3067head()\u3068tail()\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u51fa\u529b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u6700\u521d\u306en\u884c\u3092\u8fd4\u3059\u6a5f\u80fd\u3001Head():<\/p>\n

head(<\/span>x,<\/span>n=<\/span>number)<\/span>\r\n<\/code><\/pre>\n
\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u6700\u5f8c\u306en\u884c\u3092\u8fd4\u3059\u95a2\u6570\u3001Tail()\u3002<\/p>\n
tail(<\/span>x,<\/span>n=<\/span>number)<\/span>\r\n<\/code><\/pre>\n
\u3069\u3053<\/p>\n
x = \u5165\u529b\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\/\u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u3002<\/p>\n
\u95a2\u6570\u304c\u8868\u793a\u3059\u3079\u304d\u884c\u6570\u3092\u8868\u3059n\u3002<\/p>\n
\n
R\u3067\u306ehead()\u95a2\u6570<\/h2>\n
R\u306ehead()\u95a2\u6570\u306f\u3001\u5165\u529b\u3055\u308c\u305f\u30c7\u30fc\u30bf\u30d5\u30ec\u30fc\u30e0\u306e\u6700\u521d\u306en\u884c\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001head()\u95a2\u6570\u3092\u4f7f\u7528\u3057\u3066\u6700\u521d\u306en\u884c\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3067\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067R\u30b9\u30bf\u30b8\u30aa\u3067\u5229\u7528\u53ef\u80fd\u306a\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u300c\u30a2\u30e4\u30e1\u300d\u3092\u30a4\u30f3\u30dd\u30fc\u30c8\u3057\u307e\u3059\u3002<\/p>\n
#importing the dataset<\/span>\r\ndf<-<\/span>datasets::<\/span>iris\r\n\r\n#returns first n rows of the data<\/span>\r\nhead(<\/span>df)<\/span>\r\n<\/code><\/pre>\n
\"Iris<\/div>\n
iris\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306b\u542b\u307e\u308c\u308b\u6700\u521d\u306e6\u884c\u304chead\uff08\uff09\u95a2\u6570\u306b\u3088\u3063\u3066\u8fd4\u3055\u308c\u305f\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
\u30ab\u30b9\u30bf\u30e0\u884c\u3092\u4f7f\u7528\u3057\u305fhead()\u95a2\u6570<\/h3>\n
\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u3001head()\u95a2\u6570\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u6700\u521d\u306e6\u884c\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
\u3057\u304b\u3057\u3001\u3082\u3057\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u6700\u521d\u306e10\u884c\u308415\u884c\u3092\u898b\u305f\u3044\u5834\u5408\u306f\u3069\u3046\u3067\u3059\u304b\uff1f<\/p>\n
\u7279\u5b9a\u306e\u884c\u6570\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306b\u3001head\u95a2\u6570\u306b\u6570\u5024\u306e\u5f15\u6570\u3092\u6e21\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u3044\u3046\u69cb\u6587\u3067\u304a\u6c17\u3065\u304d\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n
\u305d\u308c\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
#importing the data<\/span>\r\ndf<-<\/span>datasets::<\/span>airquality\r\n\r\n#returns first 10 rows<\/span>\r\nhead(<\/span>df,<\/span>n=<\/span>10<\/span>)<\/span>\r\n<\/code><\/pre>\n
\"Head<\/div>\n
\u79c1\u305f\u3061\u304c\u5165\u529b\u3067\u6307\u5b9a\u3057\u305f\u901a\u308a\u3001head()\u95a2\u6570\u304c\u6700\u521d\u306e10\u884c\u3092\u8fd4\u3057\u3066\u3044\u307e\u3059\u3002\u540c\u3058\u7d50\u679c\u3092\u5f97\u308b\u305f\u3081\u306b\u3001head(df,10)\u3068\u3044\u3046\u540c\u3058\u30af\u30a8\u30ea\u3092\u66f8\u304f\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n
head()\u95a2\u6570\u306e\u52d5\u4f5c\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\n
\u7279\u5b9a\u306e\u5217\u306e\u6700\u521d\u306en\u500b\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306ehead()\u95a2\u6570<\/h3>\n
\u3067\u306f\u3001\u4e0a\u8a18\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001head()\u95a2\u6570\u306f\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u6700\u521d\u306en\u884c\u306b\u5b58\u5728\u3059\u308b\u5024\u306e\u5168\u4f53\u30bb\u30c3\u30c8\u3092\u8fd4\u3057\u307e\u3057\u305f\u3002<\/p>\n
\u305f\u3060\u3057\u3001head()\u95a2\u6570\u306f\u7279\u5b9a\u306e\u5217\u306e\u5024\u3092\u8fd4\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3053\u3068\u3092\u3054\u5b58\u77e5\u3067\u3059\u304b\uff1f<\/p>\n
\u306f\u3044\u3001\u3042\u306a\u305f\u306f\u6b63\u3057\u304f\u8aad\u307f\u307e\u3057\u305f\uff01<\/p>\n
\u6307\u5b9a\u3057\u305f\u5217\u306e\u6700\u521d\u306en\u500b\u306e\u5024\u3092\u3001\u4e00\u3064\u306e\u30b3\u30fc\u30c9\u3067\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
#importing the data<\/span>\r\ndf<-<\/span>datasets::<\/span>mtcars\r\n\r\n#returns first 10 values in column 'mpg'<\/span>\r\nhead(<\/span>mtcars$<\/span>mpg,<\/span>10<\/span>)<\/span>\r\n<\/code><\/pre>\n
Output = 21.0 21.0 22.8 21.4 18.7 18.1 14.3 24.4 22.8 19.2\r\n<\/code><\/pre>\n
\u4e0a\u8a18\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u3088\u3046\u306b\u3001\u5fc5\u8981\u306a\u5217\u540d\u3068\u5fc5\u8981\u306a\u884c\u6570\u3092\u7c21\u5358\u306b\u6307\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0a\u3067\u3059\u3002<\/p>\n
\u30d8\u30c3\u30c9\uff08\uff09\u95a2\u6570\u306f\u30c7\u30fc\u30bf\u3092\u89e3\u6790\u3057\u3001\u5fc5\u8981\u306a\u60c5\u5831\u3092\u8fd4\u3057\u307e\u3059\u3002<\/p>\n
\n
R\u306etail()\u95a2\u6570<\/h2>\n
R\u306etail()\u95a2\u6570\u306f\u3001\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u6700\u5f8c\u306en\u884c\u3092\u8868\u793a\u3059\u308b\u305f\u3081\u306b\u7279\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u306fhead()\u95a2\u6570\u3068\u306f\u9006\u3067\u3059\u3002<\/p>\n
\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001R\u3067\u306etail()\u95a2\u6570\u3068\u305d\u306e\u4f7f\u7528\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u76ee\u7684\u306e\u305f\u3081\u306b\u3001\u79c1\u305f\u3061\u306f\u300cairquality\u300d\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
#importing the dataset <\/span>\r\ndf<-<\/span>datasets::<\/span>airquality\r\n\r\n#returns last n rows of the data<\/span>\r\ntail(<\/span>df)<\/span>\r\n<\/code><\/pre>\n
\"Tail<\/div>\n
\u3053\u306e\u51fa\u529b\u3067\u3001\u30a2\u30a4\u30ea\u30b9\u30c7\u30fc\u30bf\u30bb\u30c3\u30c8\u306e\u6700\u5f8c\u306e6\u884c\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306fR\u306etail()\u95a2\u6570\u306e\u52d5\u4f5c\u3067\u3059\u3002<\/p>\n
\u30ab\u30b9\u30bf\u30e0\u884c\u3092\u6301\u3064 tail() \u95a2\u6570<\/h3>\n
head()\u95a2\u6570\u3068\u540c\u69d8\u306b\u3001tail()\u95a2\u6570\u306f\u6307\u5b9a\u3055\u308c\u305f\u884c\u6570\u306e\u6700\u5f8c\u306en\u884c\u3092\u8fd4\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
#importing the data<\/span>\r\ndf<-<\/span>datasets::<\/span>airquality\r\n\r\n#returns the last 10 values <\/span>\r\ntail(<\/span>df,<\/span>10<\/span>)<\/span>\r\n<\/code><\/pre>\n
\"Tail<\/div>\n
\u3053\u3053\u3067\u306f\u3001tail()\u95a2\u6570\u304c\u30b3\u30fc\u30c9\u3067\u6307\u5b9a\u3057\u305f\u3088\u3046\u306b\u3001\u6700\u5f8c\u306e10\u884c\u3092\u8fd4\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n
\n
\u7279\u5b9a\u306e\u5217\u304b\u3089\u6700\u521d\u306en\u500b\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306etail()\u95a2\u6570<\/h3>\n
`head()`\u95a2\u6570\u3068`tail()`\u95a2\u6570\u306f\u3001\u307e\u3063\u305f\u304f\u9006\u306e\u65b9\u6cd5\u3067\u540c\u3058\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n
\u7279\u5b9a\u306e\u5217\u306e\u6700\u5f8c\u306en\u500b\u306e\u5024\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306b\u3001tail\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u3055\u3066\u3001\u305d\u308c\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\uff01 (Sate, sore ga dono y\u014d ni kin\u014d suru ka mite mimashou!)<\/p>\n
#importing the data<\/span>\r\ndf<-<\/span>datasets::<\/span>mtcars\r\n\r\n#returns the last 10 values of column 'mpg'<\/span>\r\ntail(<\/span>mtcars$<\/span>mpg,<\/span>10<\/span>)<\/span>\r\n<\/code><\/pre>\n
Output = 15.2 13.3 19.2 27.3 26.0 30.4 15.8 19.7 15.0 21.4\r\n<\/code><\/pre>\n
\u3082\u3057\u3053\u306e\u51fa\u529b\u3092\u624b\u306b\u5165\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u308c\u3070\u3001\u304a\u3081\u3067\u3068\u3046\u3054\u3056\u3044\u307e\u3059\uff01\u3042\u306a\u305f\u306f\u3084\u308a\u307e\u3057\u305f\u3002<\/p>\n
\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u306e\u3088\u3046\u306b\u3001\u5217\u540d\u3068\u884c\u6570\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u5fc5\u8981\u306a\u5024\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\n
\u307e\u3068\u3081\u308b<\/h2>\n
R\u306ehead()\u95a2\u6570\u3068tail()\u95a2\u6570\u306f\u3001\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u53d6\u308a\u3084\u5206\u6790\u306b\u304a\u3044\u3066\u6700\u3082\u6709\u7528\u306a\u95a2\u6570\u3067\u3059\u3002<\/p>\n
\u3053\u308c\u3089\u306e\u95a2\u6570\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u3055\u308c\u305f\u5024\u3092\u53d6\u5f97\u3067\u304d\u307e\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u306a\u69cb\u6587\u3067\u52b9\u679c\u7684\u306a\u7d50\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\uff01R\u306ehead()\u95a2\u6570\u3068tail()\u95a2\u6570\u3002<\/p>\n
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\u3082\u3063\u3068\u5b66\u7fd2\u3059\u308b\uff1aR\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3<\/p>\n","protected":false},"excerpt":{"rendered":"
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