PROTECTED] On Behalf Of Lanre Okusanya
Sent: Friday, August 10, 2007 2:20 PM
To: jim holtman
Cc: r-help@stat.math.ethz.ch
Subject: Re: [R] Help wit matrices
that was ridiculously simple. duh.
THanks
Lanre
On 8/10/07, jim holtman [EMAIL PROTECTED] wrote:
Is this what you want:
x - matrix
Will something like this help?
mm - matrix(rnorm(100),nrow=10)
mm
nn - mm .5
nn
--- Lanre Okusanya [EMAIL PROTECTED] wrote:
Hello all,
I am working with a 1000x1000 matrix, and I would
like to return a
1000x1000 matrix that tells me which value in the
matrix is greater
than a
I hope you don't mind that I offer also two solutions. No.1 is really
bad. No.2 should be on par with the other ones.
Best,
Roland
mydata - matrix(rnorm(10*10), ncol=10)
threshold.value - 1.5
mydata2 - matrix(0, nrow=nrow(mydata), ncol=ncol(mydata))
mydata3 - matrix(0, nrow=nrow(mydata),
Is this what you want:
x - matrix(runif(100), 10)
round(x, 3)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 0.268 0.961 0.262 0.347 0.306 0.762 0.524 0.062 0.028 0.226
[2,] 0.219 0.100 0.165 0.131 0.578 0.933 0.317 0.109 0.527 0.131
[3,] 0.517 0.763 0.322 0.374 0.910
mat2-matrix(as.numeric(mat10.25), ncol=1000)
--
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40 S 49° 16' 22 O
On 10/08/07, Lanre Okusanya [EMAIL PROTECTED] wrote:
Hello all,
I am working with a 1000x1000 matrix, and I would like to return a
1000x1000 matrix that tells me which value
that was ridiculously simple. duh.
THanks
Lanre
On 8/10/07, jim holtman [EMAIL PROTECTED] wrote:
Is this what you want:
x - matrix(runif(100), 10)
round(x, 3)
[,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10]
[1,] 0.268 0.961 0.262 0.347 0.306 0.762 0.524 0.062 0.028
Hello all,
I am working with a 1000x1000 matrix, and I would like to return a
1000x1000 matrix that tells me which value in the matrix is greater
than a theshold value (1 or 0 indicator).
i have tried
mat2-as.matrix(as.numeric(mat10.25))
but that returns a 1:10 matrix.
I have also tried for
On 10-Aug-07 18:05:50, Lanre Okusanya wrote:
Hello all,
I am working with a 1000x1000 matrix, and I would like to return a
1000x1000 matrix that tells me which value in the matrix is greater
than a theshold value (1 or 0 indicator).
i have tried
mat2-as.matrix(as.numeric(mat10.25))
but
