[R] better way of recoding factors in data frame?

2009-04-09 Thread mohinder_datta
Hi all, I apologize in advance for the length of this post, but I wanted to make sure I was clear. I am trying to merge two dataframes that share a number of rows (but some are unique to each data frame). Each row represents a subject in a study. The problem is that sex is coded differently

Re: [R] better way of recoding factors in data frame?

2009-04-09 Thread Thomas Lumley
On Thu, 9 Apr 2009 mohinder_da...@yahoo.com wrote: Hi all, I apologize in advance for the length of this post, but I wanted to make sure I was clear. Good strategy. I tried this: myFrame2$newSex - ifelse(myFrame2$newSex ==1 || myFrame2$newSex == 2, myFrame2$newSex, 0) First, you

Re: [R] better way of recoding factors in data frame?

2009-04-09 Thread Mohinder Datta
Thank you for your help! --- On Thu, 4/9/09, Thomas Lumley tlum...@u.washington.edu wrote: From: Thomas Lumley tlum...@u.washington.edu Subject: Re: [R] better way of recoding factors in data frame? To: mohinder_da...@yahoo.com Cc: r-help@r-project.org Date: Thursday, April 9, 2009, 2:10