Sorry folks but again I have failed in my understanding of how to do a very simple thing. I've read the various texts and searched the help archives but no positive result so far.
I want to remove all the rows in a data frame where one of the variables has negative values. In approx Stata pseudocode: drop _all, if( x < 0 ) Please either point me to relevant sections of the docs or supply me with solution - I'm sure it's very simple. Michael ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
