R , rattle , recode

Question

R , rattle

here is my data :

KK<- c('yes','no','yes','yes','dp')
LL<- c('dp','no','yes','yes','no')
II<- c('yes','dp','no','no','no')
JJ<- c('yes','no','yes','yes','dp')
AA<- c('no','dp','yes','yes','yes')
MYDATA <- data.frame(KK,LL,II,JJ,AA);MYDATA

Target：

recode 「no」 to 「0.0」

recode 「yes」to 「1.0」

recode 「dp」to 「0.5」

Question: how can i recode in r with the package 「rattle」

score 2 · Answer 1 · answered Mar 22 '15 at 16:18

2

Assuming that you are looking for a numeric result:

(MYDATA == "dp") / 2 + (MYDATA == "yes")

giving:

      KK  LL  II  JJ  AA
[1,] 1.0 0.5 1.0 1.0 0.0
[2,] 0.0 0.0 0.5 0.0 0.5
[3,] 1.0 1.0 0.0 1.0 1.0
[4,] 1.0 1.0 0.0 1.0 1.0
[5,] 0.5 0.0 0.0 0.5 1.0

answered Mar 22 '15 at 16:18

G. Grothendieck

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score 1 · Accepted Answer · answered Mar 22 '15 at 16:18

We can convert the 'MYDATA' to 'matrix', change the 'character' class to 'factor' by specifying the labels to '0.5, 0, 1' based on the order of levels and assign it back to 'MYDATA'. [] will ensure that the structure remains the same.

MYDATA[] <- as.numeric(as.character(factor(as.matrix(MYDATA), 
                            labels=c(0.5, 0, 1))))

MYDATA 
#   KK  LL  II  JJ  AA
#1 1.0 0.5 1.0 1.0 0.0
#2 0.0 0.0 0.5 0.0 0.5
#3 1.0 1.0 0.0 1.0 1.0
#4 1.0 1.0 0.0 1.0 1.0
#5 0.5 0.0 0.0 0.5 1.0

R , rattle , recode

2 Answers2