R help - Nov 2004 - variable object naming

Is it possible to give a temporary object a name that varies with each run of a
foreloop?  For example, I want to fill a matrix every time I run a loop, and I
want a new matrix with each run, with an appropriate new name.
i.e.:
for(i in 1:5){...  matrix.i<-some values ...}

so that in the end I would have:
matrix.1
matrix.2
matrix.3
matrix.4
matrix.5

Thanks,
Ben Osborne

--
Botany Department
University of Vermont
109 Carrigan Drive
Burlington, VT 05405

benjamin.osborne at uvm.edu
phone: 802-656-0297
fax: 802-656-0440

Benjamin M. Osborne <Benjamin.Osborne <at> uvm.edu> writes:

: 
: Is it possible to give a temporary object a name that varies with each run 
of a
: foreloop?  For example, I want to fill a matrix every time I run a loop, and 
I
: want a new matrix with each run, with an appropriate new name.
: i.e.:
: for(i in 1:5){...  matrix.i<-some values ...}
: 
: so that in the end I would have:
: matrix.1
: matrix.2
: matrix.3
: matrix.4
: matrix.5


See 7.1 of the FAQ.

Is this, i.e., using 'assign', the direction you want
to go? If so, pay attention to the 'envir' parameter.

BEGIN FROM Stat-R-US:
http://www.ku.edu/~pauljohn/R/Rtips.html#2.2
...
2.2 Create variable names "on the fly"   (10/04/2001
Paul Johnson <pauljohn at ukans.edu>) 

Paste together a variable name, set it to a value. Use
assign. As in 
> assign(paste("file", 1, "max", sep=""), 1)
> ls()
[1] "file1max"

(Brian Ripley, June 18, 2001)
...

END FROM STAT-R-US

Regards,
Michael Grant

--- "Benjamin M. Osborne" <Benjamin.Osborne at uvm.edu>
wrote:
> Is it possible to give a temporary object a name
> that varies with each run of a
> foreloop?  For example, I want to fill a matrix
> every time I run a loop, and I
> want a new matrix with each run, with an appropriate
> new name.
> i.e.:
> for(i in 1:5){...  matrix.i<-some values ...}
> 
> so that in the end I would have:
> matrix.1
> matrix.2
> matrix.3
> matrix.4
> matrix.5
> 
> Thanks,
> Ben Osborne
> 
> --
> Botany Department
> University of Vermont
> 109 Carrigan Drive
> Burlington, VT 05405
> 
> benjamin.osborne at uvm.edu
> phone: 802-656-0297
> fax: 802-656-0440
> 
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