I have an matrix
A=[1 0 0 0 0 0 1;0 1 1 0 1 1 0 ;0 0 0 1 0 0 0 ] want to perform matrix operation using the formula
(summation i=1 to s summation r=1 to 7 q^2ir/Mi*Mr)-1/log(n)
s=3
Mi for ist row is 2,second row is 4,third row is 1
Mr is 1 for all cases
n=7

 Réponse acceptée

Andrei Bobrov
Andrei Bobrov le 11 Jan 2012

0 votes

[m k] = size(A);
i1 = (1:m)';
r = 1:k;
Mi = [2; 4; 1];
Mr = 1;
out1 = bsxfun(@rdivide,i1*r.*q.^2,Mi)*Mr;
out = sum(out1(:)) - 1/log(n);
ADD
out2 = max(out1) - 1/log(n);

3 commentaires

FIR
FIR le 11 Jan 2012
thanks andrei is it possible to calculate column wise and take max value .so that i will get seven values each for one column
Andrei Bobrov
Andrei Bobrov le 11 Jan 2012
see ADD
FIR
FIR le 11 Jan 2012
thanks andrei,sorry a small correction .i have to run for loop for every column so that for the first column the max value must be generated ,for second column the max value ans so on

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