Re: [R] Deleting many columns of a data frame with the same name in a row

On Feb 2, 2010, at 12:04 PM, Steve Lianoglou wrote: Hi, On Tue, Feb 2, 2010 at 11:47 AM, anna wrote: This is what I just found now but I guess there is a simpler way: datas[which(names(datas)=="A")]<- list(rep(NULL,length(which(names(datas)=="A" but it worked For what it's worth,

Re: [R] Deleting many columns of a data frame with the same name in a row

yes it looks really simpler, thank you! - Anna Lippel -- View this message in context: http://n4.nabble.com/Deleting-many-columns-of-a-data-frame-with-the-same-name-in-a-row-tp1460078p1460213.html Sent from the R help mailing list archive at Nabble.com.

Re: [R] Deleting many columns of a data frame with the same name in a row

thanks this is actually shorter :) - Anna Lippel -- View this message in context: http://n4.nabble.com/Deleting-many-columns-of-a-data-frame-with-the-same-name-in-a-row-tp1460078p1460208.html Sent from the R help mailing list archive at Nabble.com. _

Re: [R] Deleting many columns of a data frame with the same name in a row

Try this: subset(DF, select = setdiff(names(DF), "A")) On Tue, Feb 2, 2010 at 2:47 PM, anna wrote: > > This is what I just found now but I guess there is a simpler way: > > datas[which(names(datas)=="A")]<-list(rep(NULL,length(which(names(datas)=="A" > but it worked > > - > Anna Lippel

Re: [R] Deleting many columns of a data frame with the same name in a row

Hi, On Tue, Feb 2, 2010 at 11:47 AM, anna wrote: > > This is what I just found now but I guess there is a simpler way: > > datas[which(names(datas)=="A")]<-list(rep(NULL,length(which(names(datas)=="A" > but it worked For what it's worth, you could also have done: clean <- datas[,-which(name

Re: [R] Deleting many columns of a data frame with the same name in a row

datas[ , "A" != colnames(datas)] Uwe Ligges On 02.02.2010 17:35, anna wrote: Hi, I have a data frame datas with half of the columns with the same name "A". I want to delete all those columns from the data frame so here is what I did: datas$A<- NULL The problem is that it deleted only one colum

Re: [R] Deleting many columns of a data frame with the same name in a row

Here is one way with an example: datas=data.frame(x=1:3,A=1:3,A=1:3) names(datas)=c("x","A","A") datas datas=datas[,names(datas)!="A",drop=FALSE] datas On 2/2/2010 8:35 AM, anna wrote: Hi, I have a data frame datas with half of the columns with the same name "A". I want to delete all those col

Re: [R] Deleting many columns of a data frame with the same name in a row

Anna - You could also look at the problem from the other direction: data[,names(datas) != 'A'] - Phil Spector Statistical Computing Facility Department of Statistics

Re: [R] Deleting many columns of a data frame with the same name in a row

Try: newdf <- datas[names(datas) != "A"] On Tue, Feb 2, 2010 at 11:47 AM, anna wrote: > > This is what I just found now but I guess there is a simpler way: > > datas[which(names(datas)=="A")]<-list(rep(NULL,length(which(names(datas)=="A" > but it worked > > - > Anna Lippel > -- > View th

Re: [R] Deleting many columns of a data frame with the same name in a row

This is what I just found now but I guess there is a simpler way: datas[which(names(datas)=="A")]<-list(rep(NULL,length(which(names(datas)=="A" but it worked - Anna Lippel -- View this message in context: http://n4.nabble.com/Deleting-many-columns-of-a-data-frame-with-the-same-name-in-

[R] Deleting many columns of a data frame with the same name in a row

Hi, I have a data frame datas with half of the columns with the same name "A". I want to delete all those columns from the data frame so here is what I did: datas$A <- NULL The problem is that it deleted only one column, I would have to do it as many times as there are "A" columns. Is there a way