On 30/04/11 02:44, Alaios wrote:
Thanks a lot.
I finally used
M2<- M
M2[M< thresh]<- 0
M2[M>= thresh]<- 1
as I noticed that this one line
M2<- as.numeric( M[]< thresh )
vectorizes my matrix.
One more question I have two matrices that only differ slightly. What will be
the easiest way to co
ghtly.
What will be the easiest way to compare and find the cells that are
not the same?
M[!M==N]
N[!M==N]
Best Regards
Alex
--- On Fri, 4/29/11, David Winsemius wrote:
From: David Winsemius
Subject: Re: [R] threshold matrix
To: "Alaios"
Cc: R-help@r-project.org
Date: Frid
On Fri, Apr 29, 2011 at 07:44:59AM -0700, Alaios wrote:
> Thanks a lot.
> I finally used
>
> M2 <- M
> M2[M < thresh] <- 0
> M2[M >= thresh] <- 1
>
> as I noticed that this one line
>
> M2 <- as.numeric( M[] < thresh )
> vectorizes my matrix.
Hi.
This may be avoided, for example
M2 <- M
M
d find the cells that are not the same?
Best Regards
Alex
--- On Fri, 4/29/11, David Winsemius wrote:
> From: David Winsemius
> Subject: Re: [R] threshold matrix
> To: "Alaios"
> Cc: R-help@r-project.org
> Date: Friday, April 29, 2011, 2:57 PM
>
> On Apr 29, 20
On Apr 29, 2011, at 9:37 AM, Alaios wrote:
Dear all,
I have a quite big matrix which I would like to threshold.
If the value is below threshold the cell should be zero
and
if the value is over threshold the cell should be one
M2 <- M
M2[M < thresh] <- 0
M2[M >= thresh] <- 1
or perhaps simply
Dear all,
I have a quite big matrix which I would like to threshold.
If the value is below threshold the cell should be zero
and
if the value is over threshold the cell should be one
One really simple way to do that is two have a nested loop and check cell by
cell.
The problem is that this seem
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