Is there an on-line source that explains index vectors? I used 'strsplit' to generate a lengthy list of pairs of character vectors. I only want the first of each pair. Brackets, double brackets, and '$' operator don't work [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.