Hi all, I want to collapse multiple elements of a vector into a single comma-separated character element. I only know how to create a list of the original elements, but I have not managed to write this into a text file, which is necessary.
To illustrate, let's use the airquality dataset and extract the Month and Day columns: library(datasets) x <- data.frame(Month = airquality$Month, Day = as.character(airquality$Day)) Using the aggregate function y <- aggregate(x$Day ~ x$Month, data = x, paste) only seemingly creates what I want because the list can't be written to a file. "1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31" for the first row should actually be a character element. I've tried it but sapply, ascii, write.matrix don't seem get me there. Can someone please point me towards the function I need? Best wishes Haiko Haiko Lietz GESIS - Leibniz Institute for the Social Sciences Unter Sachsenhausen 6-8, D-50667 Köln Tel: + 49 (0) 221 / 476 94 -223 eMail: haiko.li...@gesis.org<mailto:haiko.li...@gesis.org> Web: http://www.gesis.org [[alternative HTML version deleted]]
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