2009-03-03 Rでカウント メモ おなじようにRで文字列の重複をカウントするコマンドめも > df <- data.frame(bunrui = c("S54","S54","S63","S63","S63","S62","S54","S60","S63","S62")) > table(df$bunrui) S54 S60 S62 S63 3 1 2 4 > summary(df) bunrui S62 :35 S63 :25 C1400 :12 S61 :10 S54 : 6 C2120 : 5 (Other):41