R help - Jul 2010 - logical to numeric matrix changing dimensions

example:
> y=(rbind(c(TRUE,TRUE,TRUE),c(FALSE,FALSE,FALSE)))
> y
      [,1]  [,2]  [,3]
[1,]  TRUE  TRUE  TRUE
[2,] FALSE FALSE FALSE
> as.numeric(y)
[1] 1 0 1 0 1 0

I am trying to make some important matrixes become nuemric (1 or 0) but they
change their dimensions.. anyone know how to easily fix it??


Tks in advance.

	[[alternative HTML version deleted]]

example:
> y=(rbind(c(TRUE,TRUE,TRUE),c(
FALSE,FALSE,FALSE)))
> y
      [,1]  [,2]  [,3]
[1,]  TRUE  TRUE  TRUE
[2,] FALSE FALSE FALSE
> as.numeric(y)
[1] 1 0 1 0 1 0

I am trying to make some important matrixes become nuemric (1 or 0) but they
change their dimensions.. anyone know how to easily fix it??


Tks in advance.

	[[alternative HTML version deleted]]

Hi

r-help-bounces at r-project.org napsal dne 14.07.2010 07:54:51:
> example:
> > y=(rbind(c(TRUE,TRUE,TRUE),c(FALSE,FALSE,FALSE)))
> > y
>       [,1]  [,2]  [,3]
> [1,]  TRUE  TRUE  TRUE
> [2,] FALSE FALSE FALSE
> > as.numeric(y)
> [1] 1 0 1 0 1 0
> 
> I am trying to make some important matrixes become nuemric (1 or 0) but 
they
> change their dimensions.. anyone know how to easily fix it??
Matrix is only vector with dimensions, and function as.numeric creates a 
vector changed to numeric so it strips dimensions.For your purpose I would 
use

y+0 or y*1

or maybe you can use logical matrix directly in your computations.

Regards
Petr
> 
> 
> Tks in advance.
> 
>    [[alternative HTML version deleted]]
> 
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide 
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.