[R] solved elegantly! Was: "Large" data set: performance issue
Till Baumgaertel
till.baumgaertel at epost.de
Tue Apr 2 18:43:39 CEST 2002
>library(methods)
>setAs("character","num", function(from)as.numeric(from))
>datfull <- read.csv(file.choose(),
> colClasses=rep(c("character","num"), c(22,1801)))
WOW! now, this helps!!
thank you, excellent performance!
import took quite excactly 50 sec!
i am **very** impressed!
also i'm glad that i asked, because all of your hints gave me some deeper
insights of the R-syntax.
thank you very much!!
till
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