[R] Matrix manipulation

Markku Karhunen markku.karhunen at ktl.fi
Mon Apr 16 17:10:46 CEST 2007


Agreed. What Petr Pikal wrote, works exactly, so thank you all!

Best,
Markku

> It would be helpful if you could be more specific of what exactly 
> you'd like to compute. Have a look also at the posting guide available 
> at:
>
> http://www.R-project.org/posting-guide.html
>
>
> Best,
> Dimitris
>
> ----
> Dimitris Rizopoulos
> Ph.D. Student
> Biostatistical Centre
> School of Public Health
> Catholic University of Leuven
>
> Address: Kapucijnenvoer 35, Leuven, Belgium
> Tel: +32/(0)16/336899
> Fax: +32/(0)16/337015
> Web: http://med.kuleuven.be/biostat/
>     http://www.student.kuleuven.be/~m0390867/dimitris.htm
>
>
> ----- Original Message ----- From: "Markku Karhunen" 
> <markku.karhunen at ktl.fi>
> To: <r-help at stat.math.ethz.ch>
> Sent: Monday, April 16, 2007 2:52 PM
> Subject: [R] Matrix manipulation
>
>
>> Hi,
>>
>> This is a very basic question, but apparently I am too stupid for it.
>>
>> I have a large matrix A, and I need to avoid for loops. How could I
>> apply a function f(a,r,c) on each element of A, using the subscript (row
>> and column) of a as the other arguments?
>>
>> Thanks in advance,
>> Markku Karhunen
>> National Public Health Institute,
>> Finland
>>
>> ______________________________________________
>> R-help at stat.math.ethz.ch mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide 
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
> Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm
>



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