[R] Storing Matrices into Hash

[Gundala Viswanath]

Thanks so much Eric,

But how do you include that in a loop.

I tried this, doesn't seem to work. Please advice:

__BEGIN__
all_mat <- NULL

for (matno in 1:10) {

    mat <- process_to_create_matrix(da[matno])
    all_mat <- list(all_post, matno = mat)

}

print(all_mat) # it gives funny structure.
__END__

- Gundala Viswanath
Jakarta - Indonesia



On Fri, Aug 1, 2008 at 11:01 AM, Erik Iverson <iverson at biostat.wisc.edu> wrote:
> I think a named list is probably the easiest way to start off, something
> like:
>
> all_mat <- list(mat1 = mat1, mat2 = mat2)
>
> all_mat$mat2
>
>
>
> Gundala Viswanath wrote:
>>
>> Hi,
>>
>> Suppose I have these two matrices (could be more).
>> What I need to do is to store these matrices into a hash.
>>
>> So that I can call back any of the matrix back later.
>>
>> Is there a way to do it?
>>
>>> mat_1
>>
>>               [,1]        [,2]
>>  [1,] 9.327924e-01 0.067207616
>>  [2,] 9.869321e-01 0.013067929
>>  [3,] 9.892814e-01 0.010718579
>>  [4,] 9.931603e-01 0.006839735
>>  [5,] 9.149056e-01 0.085094444
>>
>>> mat_2
>>
>>               [,1]        [,2]
>>  [1,] 9.328202e-01 0.067179769
>>  [2,] 9.869402e-01 0.013059827
>>  [3,] 9.892886e-01 0.010711437
>>  [4,] 9.931660e-01 0.006833979
>>  [5,] 9.149391e-01 0.085060890
>>
>>
>> This method I have is not favorable
>> because it just stack the matrices together as another matrix.
>> Makes it hard to get individual matrix later.
>>
>> all_mat <- NULL
>> all_mat <- c(all_mat, mat1,mat2)
>>
>>
>>
>> - Gundala Viswanath
>> Jakarta - Indonesia
>>
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>