How to subtract from a vector a three dimentional matrix
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Hi everyone,
I have a 1x12 vector and a 3x2x12 matrix, say i x j x t. I want to subtract for each i and for each j the corresponding vector of t. I've tried the following, but it doesn't work.
for t=1:12
for j=1:2; %size(inputs,1);
for i=1:3 %10;
MSFE_i(i,:,j)=mean((y(1:12)'-forecasts_test(i,j,:)).^2);
end
end
end;
any ideas of what i am missing here? Thanks in advance.
0 Kommentare
Akzeptierte Antwort
Adam
am 12 Dez. 2016
Bearbeitet: Adam
am 12 Dez. 2016
for example:
a = ones( 3, 2, 12 );
v = linspace( 0, 1, 12 );
res = reshape( bsxfun( @minus, reshape( a, [], 12 ), v ), [3, 2, 12] );
Obviously you can generalise the hard coded numbers and you don't need all the linspace stuff - I just used that to create a vector for me to subtract and then check the results quickly.
2 Kommentare
Adam
am 12 Dez. 2016
My v above is 1x12 which is the same as what you said your vector was so you just use your vector instead of my linspace-created vector.
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Matrix Indexing finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!