Re: [R] Process multiple columns of data.frame

2007-11-20 Thread Thompson, David (MNR)
etained. So, I appear to be on my way again. Thanx again, DaveT. * >-Original Message- >From: jim holtman [mailto:[EMAIL PROTECTED] >Sent: November 20, 2007 04:21 PM >To: Thompson, David (MNR) >Cc: r-help@r-project.org >Subject: Re: [

Re: [R] Process multiple columns of data.frame

2007-11-20 Thread jim holtman
7;dbh.n')] <- 0 > > Thank you for your time, DaveT. > * > > >-----Original Message- > >From: jim holtman [mailto:[EMAIL PROTECTED] > >Sent: November 20, 2007 02:25 PM > >To: Thompson, David (MNR) > >Cc: r-help@r-p

Re: [R] Process multiple columns of data.frame

2007-11-20 Thread Thompson, David (MNR)
* >-Original Message- >From: jim holtman [mailto:[EMAIL PROTECTED] >Sent: November 20, 2007 02:25 PM >To: Thompson, David (MNR) >Cc: r-help@r-project.org >Subject: Re: [R] Process multiple columns of data.frame > >It really depends on what you want to set th

Re: [R] Process multiple columns of data.frame

2007-11-20 Thread jim holtman
It really depends on what you want to set the values that contain NAs to for the various type of the columns. Do you always want numerics =0, characters ="", and factors =whatever? Do you want to do this for all the columns in a dataframe? If you want to it for all the columns in a matrix, it is

[R] Process multiple columns of data.frame

2007-11-20 Thread Thompson, David (MNR)
Hello, How do I do the following more concisely? Bout[is.na(Bout$bd.n), 'bd.n'] <- 0 Bout[is.na(Bout$ht.n), 'ht.n'] <- 0 Bout[is.na(Bout$dbh.n), 'dbh.n'] <- 0 Would the form of such a command be different between numeric, character and factor columns? . . . between data.f