[R] how to change automatically 0=no and 1=yes

[Muhammad Subianto]

Dear all,
Sean Davis, Dimitris Rizopoulos and Marc Schwartz, thanks for your great 
help. It works perfectly. Thanks a lot.
All the best,
Muhammad Subianto

On this day 6/15/2005 4:06 PM, Sean Davis wrote:
 >  > x <- data.frame(matrix(c(1,0,1,0,1,1),nrow=3))
 >  > x[x==0] <- 'no'
 >  > x[x==1] <- 'yes'
 >  > x
 >     X1  X2
 > 1 yes  no
 > 2  no yes
 > 3 yes yes
 >

On this day 6/15/2005 4:06 PM, Dimitris Rizopoulos wrote:
 > try this:
 >
 > dat <- data.frame(matrix(sample(0:1, 100 * 20, TRUE), 100, 20))
 > ############
 > dat[] <- lapply(dat, factor, levels = c(0, 1), labels = c("no",
 > "yes"))
 > dat
 >

On this day 6/15/2005 4:16 PM, Marc Schwartz wrote:
 >
 >
 >>as.data.frame(ifelse(df == 0, "No", "Yes"))
 >


On this day 6/15/2005 3:58 PM, Muhammad Subianto wrote:
> Dear R-helpers,
> I have dataset (data.frame) like below,
>    x1  x2  x3   x4   x5  x6  x7  x8  x9 ... x1200
>     0    0    0    1    1    0    0    1    1
>     1    0    0    1    1    0    0    1    1
>     0    1    0    1    1    0    0    1    1
>     1    1    0    1    1    0    0    1    1
> ...
> How can I change automatically 0=no and 1=yes.
> 
> Thank you very much in advance.
> Kindly regards,
> Muhammad Subianto
> 
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