[R] looping problem

[greg holly]

Hi Rui;

I do appreciate for this. Thanks so much. I will try ASAP.

Regards,

Greg

On Wed, Feb 1, 2017 at 1:32 PM, Rui Barradas <ruipbarradas at sapo.pt> wrote:

> Hello,
>
> If what you want is to combine the files into one data.frame then there
> are 2 things you should see:
>
> 1) You create a variable named 'temp' and don't ever use it.
> 2) You never combine the data.frames you read in.
>
> Try instead the following.
>
> temp <- data.frame()
> for(i in 1:22) {
>     infile<-paste("chr",i,"/Z-score.imputed",sep="")
>     psT<-read.table(infile,header=T,as.is=T,sep="\t")
>     temp <- rbind(temp, psT)
> }
>
> str(temp)  # to see what you have
>
> Hope this helps,
>
> Rui Barradas
>
>
>
>
> Em 01-02-2017 17:25, greg holly escreveu:
>
>> Hi all;
>>
>> I have 22 directories named chr1, chr2,....,chr22. Each directory has a
>> file named "Z-score.imputed". I would like to combine  Z-score.imputed
>> files into one. I wrote the following loop but did not get any results.
>> Your helps are highly appreciated.
>>
>> regards,
>>
>> Greg
>>
>> temp<-c()
>>
>> for(i in 1:22) {
>> infile<-paste("chr",i,"/Z-score.imputed",sep="")
>> psT<-read.table(as.character(infile),header=T,as.is=T,sep="\t")
>> ps<-psT[psT$Var>0.6,]
>> ratio=nrow(ps)/nrow(psT)
>> print(ratio)
>> }
>>
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>>
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>>

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