search for: data2a

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2010 May 28
1
Match 2 vectors
...dataframes of unequal length, and I would like to match a factor to them so that both dataframes will have the same number of rows. example: # create the 2 dataframes with unequal length data1 <- data.frame(letters, 1:26)[-c(5,10,19:21),] data2 <- data.frame(letters, 1:26)[-c(6,9,15:18),] data2a <- match(data1[,1], data2[,1]) data2b <- data2[data2a,] When I match data1 to data2, and combine the data2a vector to the original data2, I'm still missing some rows. I need to get the 26 rows, and preferably with the first column displaying all the levels. In data2b the mismatches show...
2005 Nov 29
1
Indexing variables within lapply?
...data1b :`data.frame': 77 obs. of 63 variables: .. ..$ var1 : num [1:77] 1284.59 7.59 1.16 8.66 2646.38 ... .. ..$ var2 : num [1:77] 1.231 1.129 0.427 1.132 0.692 ... .. ..$ var3 : num [1:77] 1.36 0.68 1.39 2.54 1.39 ... . . . $ data2:List of 2 ..$ data2a :`data.frame': 77 obs. of 63 variables: .. ..$ var1 : num [1:77] 0.41375 0.00056 1.43040 1.43528 0.61730 ... .. ..$ var2 : num [1:77] 1.154 1.686 0.673 0.800 0.760 ... .. ..$ var3 : num [1:77] 1.245 0.575 0.934 0.461 0.757 ... . . . ..$ data2b :`data...