Re: [R] compare strings

2007-12-01 Thread Peter Dalgaard
Peter Dalgaard wrote: > Also, extending the above slightly: > Oups. Two lines fell out. I meant: > y <- factor(c("b","c","b")) > x <- factor(c("a","b","b")) > d <- as.character(x)==as.character(y) > table(d) d FALSE TRUE 2 1 > which(!d) [1] 1 2 -- O__ Peter Dalgaard

Re: [R] compare strings

2007-12-01 Thread Peter Dalgaard
|-Original Message- > |From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On > |Behalf Of Bernd Jagla > |Sent: Friday, November 30, 2007 10:25 PM > |To: r-help@r-project.org > |Subject: [R] compare strings > | > |Sorry for the question, but I really cannot find the right

Re: [R] compare strings

2007-11-30 Thread markleeds
>From: Bernd Jagla <[EMAIL PROTECTED]> >Date: 2007/11/30 Fri PM 09:24:34 CST >To: r-help@r-project.org >Subject: [R] compare strings below assumes that there are only 2 columns in the dataframe or that the string columns are the first two columns ? which(df[,1] == df[,2

Re: [R] compare strings

2007-11-30 Thread Bernd Jagla
sage- |From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On |Behalf Of Bernd Jagla |Sent: Friday, November 30, 2007 10:25 PM |To: r-help@r-project.org |Subject: [R] compare strings | |Sorry for the question, but I really cannot find the right search terms to |find an answer.. | | | |I have a data f

Re: [R] compare strings

2007-11-30 Thread Bernd Jagla
AIL PROTECTED] On |Behalf Of Bernd Jagla |Sent: Friday, November 30, 2007 10:25 PM |To: r-help@r-project.org |Subject: [R] compare strings | |Sorry for the question, but I really cannot find the right search terms to |find an answer.. | | | |I have a data frame with strings in some of the columns. | |I w

[R] compare strings

2007-11-30 Thread Bernd Jagla
Sorry for the question, but I really cannot find the right search terms to find an answer.. I have a data frame with strings in some of the columns. I want to know all the rows where the strings in both columns are equal. How do I do this? Thanks, Bernd [[alternative HTML