Average of multiple matrices

[fmri]

Hi all,

I have different matrices each contain 6 vectors : e,g,

>>S1
1 1 1 1 1 1
2 2 2 2 2 2
2 3 2 3 2 3

>>S2
1 2 1 1 1 1
2 2 3 2 2 2
2 5 2 3 2 6
.
.
.
>>S15
1 2 1 1 1 1
2 2 3 2 2 2
2 5 2 8 2 7

I would like to calculate the mean of each corresponding column :

I tried this

for i=1:15 mean (S(i)(:,1))
end

It does not work.

I tried then to convert the matrices (they are double) to cells but still I was cannot calculate the means.


Any help will be appreciated

Aser

[dpb]

On 04/06/2016 6:25 AM, fmri wrote:
> Hi all,
> I have different matrices each contain 6 vectors : e,g,
>>> S1
> 1 1 1 1 1 1 2 2 2 2 2 2 2 3 2 3 2 3
>
>>> S2
> 1 2 1 1 1 1 2 2 3 2 2 2 2 5 2 3 2 6
> .
> .
> .
>>> S15
> 1 2 1 1 1 1 2 2 3 2 2 2 2 5 2 8 2 7
>
> I would like to calculate the mean of each corresponding column :
>

...

mean([S1;S2;S15])

BUT!! Don't create multiple variable with numeric postfixes and you
wouldn't have the referencing issues; use arrays or name fields in
structures or similar techniques instead.

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