On Nov 25, 2009, at 3:45 PM, William Dunlap wrote:
-Original Message-
From: r-help-boun...@r-project.org
[mailto:r-help-boun...@r-project.org] On Behalf Of Marcio Resende
Sent: Wednesday, November 25, 2009 12:27 PM
To: r-help@r-project.org
Subject: [R] How to sum only a few elements in
Marcio Resende wrote:
Hello,
I have a matrix with the numbers 0,1 and 9
I would like to write a function that could sum each line skiping everytime
a number 9 appears
for example
[0 1 0 1 1 9 1]
the sum would be 4.
However I cannot replace 9 by 0 otherwise after the sum is done I wouldn´t
be a
On Nov 25, 2009, at 3:27 PM, Marcio Resende wrote:
Hello,
I have a matrix with the numbers 0,1 and 9
I would like to write a function that could sum each line skiping
everytime
a number 9 appears
for example
[0 1 0 1 1 9 1]
sum(x[x != 9])
the sum would be 4.
However I cannot replace 9
> -Original Message-
> From: r-help-boun...@r-project.org
> [mailto:r-help-boun...@r-project.org] On Behalf Of Marcio Resende
> Sent: Wednesday, November 25, 2009 12:27 PM
> To: r-help@r-project.org
> Subject: [R] How to sum only a few elements in a line
>
>
er 2009 9:27 a.m.
> To: r-help@r-project.org
> Subject: [R] How to sum only a few elements in a line
>
>
> Hello,
>
> I have a matrix with the numbers 0,1 and 9 I would like to
> write a function that could sum each line skiping everytime a
> number 9 appears for exa
Hello,
I have a matrix with the numbers 0,1 and 9
I would like to write a function that could sum each line skiping everytime
a number 9 appears
for example
[0 1 0 1 1 9 1]
the sum would be 4.
However I cannot replace 9 by 0 otherwise after the sum is done I wouldn´t
be able to distiguish which o
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