On Wed, Apr 27, 2011 at 10:12 PM, Kenn Konstabel wrote:
> On Wed, Apr 27, 2011 at 12:58 PM, Nick Sabbe wrote:
>> No, that does not work.
>> You cannot do assignment within (l)apply.
>> Nor in any other function for that matter.
>
> Yes that may work if you want to.
> You can do non-local assignme
an answer does not ensure
that a reasonable answer can be extracted from a given body of data.
~ John Tukey
> -Oorspronkelijk bericht-
> Van: Alaios [mailto:ala...@yahoo.com]
> Verzonden: woensdag 27 april 2011 12:14
> Aan: R-help@r-project.org; ONKELINX, Thierry
> Onde
can I try this out?
Best Regards
Alex
--- On Wed, 4/27/11, ONKELINX, Thierry wrote:
> From: ONKELINX, Thierry
> Subject: RE: [R] Assignments inside lapply
> To: "Alaios" , "R-help@r-project.org"
> Date: Wednesday, April 27, 2011, 11:06 AM
> Dear Alex,
>
2011 11:37
> Aan: R-help@r-project.org
> Onderwerp: [R] Assignments inside lapply
>
> Dear all I would like to ask you if an assignment can be done
> inside a lapply statement.
>
> For example
>
> I would like to covert a double nested for loop
>
> for (i in
ure Links 653, 9000 Gent
> ring: 09/264.59.36
>
> -- Do Not Disapprove
>
>
>
> -Original Message-
> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
> Behalf Of Alaios
> Sent: woensdag 27 april 2011 11:37
> To: R-help@r-project.org
-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Alaios
Sent: woensdag 27 april 2011 11:37
To: R-help@r-project.org
Subject: [R] Assignments inside lapply
Dear all I would like to ask you if an assignment can be done inside a
lapply statement.
For example
I would
unlist(lapply(1:nrow(ij),function(rowId) { return
(Powermap[i,j]<-Pr(c(ij$i[rowId],ij$j[rowId]),c(PRX,PRY),f)) }))lapply
actually catches each return value of the excuted function.
here your function actually returns nothing if the assignment succeeds.
If your purpose for the call to Pr is jus
Dear all I would like to ask you if an assignment can be done inside a lapply
statement.
For example
I would like to covert a double nested for loop
for (i in c(1:dimx)){
for (j in c(1:dimy)){
Powermap[i,j] <- Pr(c(i,j),c(PRX,PRY),f)
}
}
to something like that:
ij<-expand.grid(i=
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