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## error: only one index allowed for lists

**From**: |
Prasenjit Kapat |

**Subject**: |
error: only one index allowed for lists |

**Date**: |
Mon, 3 Oct 2005 12:51:08 -0400 |

Hi,
The subject gives the error message. A toyed down version of what I
want to do is this..
>* a = cell(1,3);*
>* a{1} = zeros(2,3);*
>* a{2} = ones(2,3);*
>* a{3} = zeros(2,3);*
>* a{:}(1,1) ## I want this to give [ 0 1 0] as the answer, instead the error...*
error: only one index allowed for lists
I get what this means. Is there any way around ? To be more fair to my
problem, I want a 2x3 matrix b = some_function(a) such that, b(i,j) =
a{1}(i,j) + a{2}(i,j) + a{3}(i,j). Of course, in real terms these
dimensions are huge, so is the 'length of the list'. Thus the brute
force way is expensive,O(n^3). Some N-dimensional array, like matlab ?
Well, I do not have administrative access to the machine, and the
octave version is an age old one: 2.1.50, possibly on fedora 1.
Any comments ?
Thanks
Kapat
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**error: only one index allowed for lists**,
*Prasenjit Kapat* **<=**