2 messages · Rasmus Liland, Bert Gunter
| That is awesome! Thanks. Dear AiGuo, I thought: why make this overly complicated, when this is also possible: a <- matrix(LETTERS[1:16], nrow=4) X <- split(x=a[,-1], f=a[,1]) lapply(X=X, FUN=as.factor) Best, Rasmus
"I thought: why make this overly complicated,..." Indeed, though "complicated" is in the eyes of the beholder. One wonders whether any of this is necessary, though: see ?apply , as in apply(a, 1, whatever...) to do things rowwise. Cheers, Bert Bert Gunter "The trouble with having an open mind is that people keep coming along and sticking things into it." -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
On 2020-04-09 18:00 +0000, aiguo li wrote: | That is awesome! Thanks. Dear AiGuo, I thought: why make this overly complicated, when this is also possible: a <- matrix(LETTERS[1:16], nrow=4) X <- split(x=a[,-1], f=a[,1]) lapply(X=X, FUN=as.factor) Best, Rasmus
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