Re: [R] Applying a function on each columns of a matrix

A example: set.seed(123) m <- matrix(rnorm(12), 3) myParam <- rowMeans(m) sweep(m, 1, myParam, FUN = "-") This subtracts the myParam value in each column. On Fri, Jan 29, 2010 at 6:59 PM, anna wrote: > > I had a quick look at the sweep function but didn't find a solution in it, I > am going to

Re: [R] Applying a function on each columns of a matrix

I had a quick look at the sweep function but didn't find a solution in it, I am going to look at it again then. - Anna Lippel -- View this message in context: http://n4.nabble.com/Applying-a-function-on-each-columns-of-a-matrix-tp1415660p1428193.html Sent from the R help mailing list archiv

Re: [R] Applying a function on each columns of a matrix

See sweep function On Fri, Jan 29, 2010 at 2:32 PM, anna 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 >

Re: [R] Applying a function on each columns of a matrix

But then I would have to make a loop right? - Anna Lippel -- View this message in context: http://n4.nabble.com/Applying-a-function-on-each-columns-of-a-matrix-tp1415660p1415743.html Sent from the R help mailing list archive at Nabble.com. __ R-h

Re: [R] Applying a function on each columns of a matrix

Hello, You could do something along the following lines: sapply( 1:ncol( my.matrix ), function( i ) my.foo( my.matrix[,i], my.parm[i] ) Best regards, Carlos J. Gil Bellosta http://www.datanalytics.com anna wrote: Hello everyone, I have the following matrix

[R] Applying a function on each columns of a matrix

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,] 0.004838