[R] Transform every integer to 1 or 0

[arun]

Hi,

You could try:
 df[df>0]<-1
#or
 df[]<-as.integer(df!=0)
 df
#    V1 V2 V3
#yes  1  0  1
#no   0  1  1
A.K.


----- Original Message -----
From: Wim Kreinen <wkreinen at gmail.com>
To: r-help at r-project.org
Cc: 
Sent: Monday, February 4, 2013 1:33 PM
Subject: [R] Transform every integer to 1 or 0

Hello,

I have a dataframe with positive integers and
for every value > 0
I would like to have 1 and the rest should be zero.

For instance

1 0 1
0 1 1

with df as reference.

> df
    V1 V2 V3
yes 23  0  5
no   0  5  7
> dput (df)
structure(list(V1 = c(23, 0), V2 = c(0, 5), V3 = c(5, 7)), .Names = c("V1",
"V2", "V3"), row.names = c("yes", "no"), class = "data.frame")

Is there a special function?

Thanks
Wim

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