Created
July 11, 2014 12:58
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R: merge multiple data tables
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| library(data.table) | |
| x <- data.table(A = c(3,2,1), B = 4:6) | |
| y <- data.table(A = 1:4, C = 5:8) | |
| z <- data.table(A = 2:3, D = 5:6) | |
| tbls <- list(x, y, z) | |
| lapply(tbls, function(i) setkey(i, A)) | |
| merged <- Reduce(function(...) merge(..., all = T), tbls) |
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Awesome, thanks!