[R] Simple column selection question- which and character lists

Dear R-list, Seems simple but have tried multiple approaches, no luck. I have a list of column names:

Re: [R] Simple column selection question- which and character lists

Hi, I think you want %in% instead of == see ?%in% HTH, baptiste 2009/8/31 AllenL allen.laroc...@gmail.com Dear R-list, Seems simple but have tried multiple approaches, no luck. I have a list of column names:

Re: [R] Simple column selection question- which and character lists

Hi Allen, have you tryed: newDF-sourceDF[,names.species.bio.18] This will create a new data.frame with only those species you have interest. By the way, your data.frame is called data? Case yes, avoid this, please. good luck milton On Mon, Aug 31, 2009 at 12:39 PM, AllenL

Re: [R] Simple column selection question- which and character lists

I have a list of column names: names.species.bio.18=c(Achimillb,Agrosmitb,Amorcaneb,Andrgerab,Ascltubeb,Elymcanab,Koelcrisb,Lespcapib,Liataspeb,Lupipereb,Monafistb,Panivirgb,Petapurpb,Poaprateb,Querellib,Quermacrb,Schiscopb,Sorgnutab) I want to select the column numbers which correspond to

Re: [R] Simple column selection question- which and character lists

-help-boun...@r-project.org] On Behalf Of AllenL Sent: Monday, August 31, 2009 11:40 AM To: r-help@r-project.org Subject: [R] Simple column selection question- which and character lists Dear R-list, Seems simple but have tried multiple approaches, no luck. I have a list of column names