[R] counting the number of ones in a vector

Nutter, Benjamin NutterB at ccf.org
Fri Feb 26 15:46:42 CET 2010

What you did works well.  You could also try the following.


-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org]
On Behalf Of Randall Wrong
Sent: Friday, February 26, 2010 9:41 AM
To: r-help at r-project.org
Subject: [R] counting the number of ones in a vector

Dear R users,

I want to count the number of ones in a vector x.

That's what I did : length( x[x==1] )

Is that a good solution ?
Thank you very much,

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