Hi, I've this dataframe:
V1 V5 V6 1 MOD13Q1_2000049 0.1723 A1 2 MOD13Q1_2000049 0.1824 B1 3 MOD13Q1_2000049 0.1824 C1 4 MOD13Q1_2000049 0.1774 A2 5 MOD13Q1_2000049 0.1953 B2 6 MOD13Q1_2000049 0.1824 C2 7 MOD13Q1_2000065 0.1921 A1 8 MOD13Q1_2000065 0.1938 B1 9 MOD13Q1_2000065 0.2009 C1 10 MOD13Q1_2000065 0.2035 A2 11 MOD13Q1_2000065 0.2157 B2 12 MOD13Q1_2000065 0.2157 C2 13 MOD13Q1_2000081 0.1997 A1 14 MOD13Q1_2000081 0.2060 B1 15 MOD13Q1_2000081 0.2140 C1 16 MOD13Q1_2000081 0.1997 A2 17 MOD13Q1_2000081 0.2099 B2 18 MOD13Q1_2000081 0.2099 C2 Can I aggreate the data$V5 by the column "V6"? Like this: A1 A2 B1 B2 C1 C2 MOD13Q1_2000049 0.1723 0.1774 0.1824 0.1953 0.1824 0.1824 MOD13Q1_2000065 0.1921 0.2035 0.1938 0.2157 0.2009 0.2157 MOD13Q1_2000081 0.1997 0.1997 0.206 0.2099 0.214 0.2099 Thanks, Alfredo ______________________________________________ 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.