Hello,

There's a shorter one, using merge().

DF2 <- merge(data.frame(x=1:8), DF1, all.x = TRUE)
DF2$y[is.na(DF2$y)] <- 0

Rui Barradas

Em 13-06-2012 02:02, arun escreveu:


Hi,

I got confused by your heading when I sent the previous reply.  There is 
another way to reach the same conclusion.

Try this:
DF1<-data.frame(x=c(2,3,4,6,7),y=c(0.12,0.25,0.11,0.16,0.20))
DF2<-data.frame(x=1:8,y=rep(NA,8))
  df3<-merge(DF1,DF2,all=TRUE)
  df3[is.na(df3)]<-0
g<-rle(df3[,1])
gVa<-g$value
gLe<-g$lengths
idg<-c(0,head(cumsum(gLe),-1))+1
df4<-data.frame(x=gVa,y=df3[idg,2])

df4
   x    y
1 1 0.00
2 2 0.12
3 3 0.25
4 4 0.11
5 5 0.00
6 6 0.16
7 7 0.20
8 8 0.00

A.K.




----- Original Message -----
From: Silvia Lucato <sluc...@lycos.com>
To: r-help@r-project.org
Cc:
Sent: Tuesday, June 12, 2012 5:55 PM
Subject: [R] replacing NA for zero


    Dear R users,



    I have a very basic query, but was unable to find a proper anwser.



    I have the following data.frame



    x     y

    2   0.12

    3   0.25

    4   0.11

    6   0.16
    7   0.20



    and, due to further calculations, I need the data to be stored as



    x     y

    1     0

    2   0.12

    3   0.25

    4   0.11

    5     0

    6   0.16
    7   0.20

    8    0



    How do I do the transformation?



    Many many thjanks in advance.
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and provide commented, minimal, self-contained, reproducible code.

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