Message-ID: <da79af331001291026w27542a9sad4f2d43379ad9f1@mail.gmail.com>
Date: 2010-01-29T18:26:36Z
From: Henrique Dallazuanna
Subject: Applying a function on each columns of a matrix
In-Reply-To: <1264782746602-1415660.post@n4.nabble.com>
See sweep function
On Fri, Jan 29, 2010 at 2:32 PM, anna <lippelanna24 at hotmail.com> wrote:
>
> Hello everyone, I have the following matrix
> ? ? ? ? ? ? [,1] ? ? ? ? ?[,2] ? ? ? ? ?[,3] ? ? ? ? [,4]
> ?[1,] ?0.002809706 ?0.0063856960 ?0.0063856960 ?0.011749681
> ?[2,] ?0.004893124 ?0.0023118418 -0.0005122951 -0.014646465
> ?[3,] ?0.003547897 ?0.0063355297 ?0.0030410542 ?0.011403953
> ?[4,] ?0.004838299 -0.0040383645 -0.0090406831 -0.011027569
> ?[5,] ?0.035648755 ?0.0334815590 ?0.0380977404 ?0.059817597
>
> I want to apply a function on each column varying the first parameter of the
> function. If I do it on one column only with apply it works perfectly as
> follow:
> apply(column1, 1, myfunction, parameter1= ..., parameter2=...)
> But when I try to do it on each column without even varying the parameter it
> doesn't work:
> apply(matrix, 2, apply, MARGIN = 1, Fun ?= myfunction, parameter1 =...,
> parameter2=...)
> I get the following error:
> Error in FUN(newX[, i], ...) :
> ?unused argument(s) (2, function (X, MARGIN, FUN, ...)
> Does someone know how to solve this? and is there a way to send a vector of
> parameter1 instead of a scalar? thank you
>
> -----
> Anna Lippel
> --
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>
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>
--
Henrique Dallazuanna
Curitiba-Paran?-Brasil
25? 25' 40" S 49? 16' 22" O