least square method.getting error using '\' or linsolve. pls help
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any kind folks who can help me out. i'm trying to implement least square method, but i'm getting some error using linsolve and '\' function. please help, and million thanks in advance!
for a =1:400
for P=1:49
o=(P-1)*243;
for r=1:35
if r==35
t=-2;
pA1(1:5,1,r,P)=A(7*r-6+o:7*r+t+o,a);
pB1(1:5,1,r,P)=B(7*r-6+o:7*r+t+o,a);
beta(r,P)=linsolve(pA1,pB1); <--- error
% beta(r,P)=pA1\pB1;
else
t=0;
pA(1:7+t,1,r,P)=A(7*r-6+o:7*r+t+o,a);
pB(1:7+t,1,r,P)=B(7*r-6+o:7*r+t+o,a);
beta(r,P)=linsolve(pA,pB);; <---- error
% beta(r,P)=pA\pB;
end
end
end
2 Comments
Stephen23
on 23 Jan 2015
Can you please tell us what the complete error message is. We cannot read minds, and we also cannot read what is on your computer screen.
Answers (1)
Matt J
on 23 Jan 2015
Edited: Matt J
on 23 Jan 2015
Your pA1 and pB1 are 4D arrays. However linsolve(A,B) expects A and B to be 2D matrices, and similarly for '\'.
4 Comments
Matt J
on 23 Jan 2015
Nope, no tips. We have no way of understanding what your code is trying to do unless you explain it to us.
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