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how to 'stack' data frames?
2010 Jul 29
2
how to 'stack' data frames?
......etc. ) but that is not giving me what I expect... > a <- iris > b <- iris > > c <-merge(a,b) > > NROW(a) [1] 150 > NROW(c) [1] 152 Why is there only 152 rows and not 300? -- View this message in context: http://r.789695.n4.nabble.com/how-to-stack-data-frames-tp2306284p2306284.html Sent from the R help mailing list archive at Nabble.com.