R help - Oct 2013 - How would i set every column in a data frame to a scale of 1-100

Hi,
Try

dat <- read.table(text="
a?? b???? c
0?? 89?? 4
1?? 93?? 3
0?? 88?? 5",sep="",header=TRUE) 

datNew <- within(dat,{a<-a*(100/1);c <- c*(100/5)})

#or
vec1 <- c(1,100,5)
as.data.frame(t(t(dat*(100))/vec1))


#or
sweep(dat*100,2,vec1,`/`)


A.K.



Hi, i am trying to get all the colums of my data frame to be in the same scale..

right now i have something like this... where a is on a 0-1 scale ?b is on a 100
scale and c is on a 1-5 scale
a ? b ? ? c 
0 ? 89 ? 4 
1 ? 93 ? 3 
0 ? 88 ? 5 

How would i get it to a 100scale like this... 
a ? ? b ? ? ?c 
0 ? ? 89 ? ? 80 
100 ?93 ? ? 60 
0 ? ? 88 ? ? 100 

i hope that is somewhat clear..