Thank you Jim
I wanted a final data frame after replacing the NA's to "0"
x1 = rbind(unique(preval),mydat)
x2 <- x1[is.na(x1)] <- 0
x2
but I got this,
[1] 0
why I am getting this?
On Sat, Feb 24, 2018 at 12:17 AM, Jim Lemon <drjimle...@gmail.com> wrote:
> Hi Val,
> Try this:
>
> preval<-data.frame(Col1=unique(unlist(mydat[,c("Col2","col3")]))[-1],
> Col2=NA,col3=NA)
> rbind(preval,mydat)
>
> Jim
>
> On Sat, Feb 24, 2018 at 3:34 PM, Val <valkr...@gmail.com> wrote:
> > Hi All,
> >
> > I am reading a file as follow,
> >
> > mydat <- read.table(textConnection("Col1 Col2 col3
> > Z2 NA NA
> > Z3 X1 NA
> > Z4 Y1 W1"),header = TRUE)
> >
> > 1. "NA" are missing should be replace by 0
> > 2. value that are in COl2 and Col3 should be included in col1 before
> > they appear
> > in col2 and col3. So the output data looks like as follow,
> >
> > X1 0 0
> > Y1 0 0
> > W1 0 0
> > Z2 0 0
> > Z3 X1 0
> > Z4 Y1 W1
> >
> > Thank you in advance
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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> > PLEASE do read the posting guide http://www.R-project.org/
> posting-guide.html
> > and provide commented, minimal, self-contained, reproducible code.
>
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