Hi all, I frequently get requests to do data analysis where the person references an excel column. e.g., "I want to analyze [insert complex variable name], located at column AAQ in Excel." I've been doing is gsub and inserting a part of the string for the complex variable name, then going from there. But, I was trying to make function that returns the following vector:
excelVector = A, B, C, D,...AA, AB, AC...ZA, ZB, ZC,...AAA, AAB, AAC, etc. In other words, the argument would have one argument (n, or the number of columns), then it would return a list like that shown above. Then, all I would have to do is column.of.interest = which(excelVector=="AAQ") But I'm a bit stumped. The first part is easy: LETTERS[1:26] The next would probably use expand.grid, but all my potential solutions are pretty clunky. Any ideas? ______________________________________________ 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.
