Dear S-Users, I tapply "summary" function to a vector and get back a list of
vectors of length six as a result. So far so good. Then I want to convert
this list to a data frame (actually to a matrix)and instead of getting a 2*6
data frame I have a 1*12 one. Any suggestion why? Thanks, Vadim
> x <- seq(1,20)
> f <- rep(c(T,F), 10)
> l <- tapply(x, f, summary)
> l
$FALSE:
Min. 1st Qu. Median Mean 3rd Qu. Max.
" 2.0" " 6.5" "11.0" "11.0" "15.5" "20.0"
$TRUE:
Min. 1st Qu. Median Mean 3rd Qu. Max.
" 1.0" " 5.5" "10.0" "10.0" "14.5" "19.0"
> data.frame(l)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12]
2 6.5 11 11 15.5 20 1 5.5 10 10 14.5 19
> mode(l)
[1] "list"
> class(l)
[1] "named"
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