[R] group values in classes

[Rui Barradas]

Hello,

Try the following.


classes <- function(x, n){
     n*findInterval(x, seq(0, ceiling(max(x)), by = n))
}

c4 <- classes(d, 4)
table(c4)
sum(table(c4))


Happy new year,

Rui Barradas
Em 31-12-2012 10:13, catalin roibu escreveu:
> Dear R users,
> I want to group numerical values in classes with different size and count
> the values for each classes.
>
> My data is in this forma:
>   d  15  12,5  30,4  20,5  80,4  100,5  8,2  40,5  33  21  11
> And I want the group them in classes with 4 (5,....etc) cm size like this:
>   class d  16  16  32  24  84  104  12  44  36  24  12
> and final to count values for each class:
> class d                               n  12 2  16 2  24 2  32 1  36 1  44 1
> 84 1  104 1  Total 11
>
> Thank you!