【R言語】統計解析フリーソフトＲ 第6章【GNU R】 [無断転載禁止]©2ch.net

[0129 １３２人目の素数さん 2017/10/07(土) 17:31:13.11 ID:O5mMfwME]

>>128
それだと、11が11stになっておかしいだろ

> library(toOrdinal)
> toOrdinal(21)
[1] "21st"
> sapply(1:20, toOrdinal)
[1] "1st" "2nd" "3rd" "4th" "5th" "6th" "7th" "8th" "9th" "10th"
[11] "11th" "12th" "13th" "14th" "15th" "16th" "17th" "18th" "19th" "20th"