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I have tried the aggregate command but it shows this error- vars <- paste('Case', c('A', 'C', 'G', 'T'), sep = '') > vars [1] "CaseA" "CaseC" "CaseG" "CaseT" > aggregate(file[vars], by = df['Pos'], FUN = sum) Error in aggregate.data.frame(file...

Thanking you, Warm Regards Vikas Bansal Msc Bioinformatics Kings College London ________________________________________ From: Bansal, Vikas Sent: Thursday, July 14, 2011 6:07 PM To: Bert Gunter Subject: RE: [R] Adding rows based on column value Yes sir.I am trying. I...

Dear Jeff, Thanks a lot for your reply. I was just curious about this thing about grep that it can perform this kind of thing or not. Otherwise with numerical comparison I know it is very easy to do.Like...

Thanks for your reply.I know readline will give me a character.But if I will do something like this- > readnumber<- function() > { > for(j in 1:10){ > value=readline("enter the threshold for number of reads: ") > value=as.numeric(value...

Because i have to use the value of i in for loop also.example- for(i in 1:100){ df=read.table($i.out,fill=T,colClasses = "character") if(i<=50){ df$V6 <- sapply(df$V6, function(a) paste(as...

DEAR ALL, I TRIED THIS CODE AND THIS IS RUNNING PERFECTLY... df=read.table("Case2.pileup",fill=T,sep="\t",colClasses = "character") txt=df[,9] txtvec <- readLines(textConnection(txt)) dad=data.frame(A = unlist(sapply(gregexpr("A|a", txtvec), function...

Thanks for your reply.But I have never seen ia.na in R.Can you please tell me how to use this? So you are saying rather than is.numeric,I have to test user input by ia.na? Thanking...

I have checked it but did not get any results.Is there a way I can do it?I will be very thankful to you. Thanking you, Warm Regards Vikas Bansal Msc Bioinformatics Kings College London ________________________________________ From: Bert Gunter [gunter...

Dear all, I have one problem and did not find any solution.(I have also attached the problem in text file because sometimes column spacing is not good in mail) I have a file(file.txt) attached with this mail...

Dear Michael, Thanks a lot for your reply and for your help.I was struggling so much but your suggestion showed me a path to the solution of my problem.I have tried your code on my data frame step...

Dear all, I have one problem and did not find any solution. I have attached the question in text file also because sometimes spacing is not good in mail. I have a file(file.txt) attached with this mail.I...

________________________________________ From: David Winsemius [dwinsemius at comcast.net] Sent: Sunday, July 03, 2011 7:08 PM To: Bansal, Vikas Cc: Dennis Murphy; r-help at r-project.org Subject: Re: [R] For help in R coding On Jul 3, 2011, at...

Is there anyone who can help me with chi square test on data frame.I am struggling from last 2 days.I will be very thankful to you. Dear all, I have been working on this problem from so many...

I have tried this,and it is working.But the thing is if user will input a character rather than number,in the end it is showing a warning message- Warning messages: 1: NAs introduced by coercion and this is...

Dear Peter, Thanks for your reply.I am familiar with this solution but I was trying to make the plot user friendly.I have seen some plots,in which if we keep a cursor on any point of plot,it...

Thanks for you reply.I have seen it and I got that we can use this goto function in the form of double loop. like- for(j in 1:10) { df=read.table(define(),fill=T,sep="\t",colClasses = "character...

Yes you are right. unlist operation is unnecessary and I have tried it yesterday and it is working without that operation also.But I have one more problem on which I have worked whole day but did not get any...

Dear Ista I have searched about the problem and came to know that we can make a list of our file names.But the thing is I am using this code- define<- function() { repeat{ hojy=readline("Enter the name of...

can you please suggest me any book or paper or website which explains this problem because I have started using R before 3 weeks only and i will not be able to understand your whole code.so if i will...

Thanks for your reply.That is why I wrote in the message that I have sent this message before but did not get any help (first line of my message). can you please tell me that if user will input...