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?

Hi Wim,
Does this do what you want?

newdf<-matrix(as.numeric(df>0),nrow=2)

Jim

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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

??? [[alternative HTML version deleted]]

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