[R] group length

Ledon, Alain
Thu, 12 May 2011 17:00:42 -0000

sapply...

> y1=c(1.214,1.180,1.199)
> y2=c(1.614,1.710,1.867,1.479)
> y3=c(1.361,1.270,1.375,1.299)
> y4=c(1.459,1.335)
> sapply(list(y1,y2,y3,y4), length)
[1] 3 4 4 2


-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Asan Ramzan
Sent: Thursday, May 12, 2011 12:50 PM
To: r-help at r-project.org
Subject: [R] group length

Hi
?
I have four groups
?
y1=c(1.214,1.180,1.199)
y2=c(1.614,1.710,1.867,1.479)
y3=c(1.361,1.270,1.375,1.299)
y4=c(1.459,1.335)
Is there a function that can give me the length for each, like the made up
example below?
?
>function(length(y1:y2)
[1] 3 4 4 2