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Comments: clarify shape of y and nr cols of theta #5

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Comments: clarify shape of y and nr cols of theta #5

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4 changes: 2 additions & 2 deletions ex1/softmax_regression_vec.m
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Expand Up @@ -8,12 +8,12 @@
%
% X - The examples stored in a matrix.
% X(i,j) is the i'th coordinate of the j'th example.
% y - The label for each example. y(j) is the j'th example's label.
% y - Row vector of labels for each example. y(j) is the j'th example's label.
%
m=size(X,2);
n=size(X,1);

% theta is a vector; need to reshape to n x num_classes.
% theta is a vector; need to reshape to n x (num_classes-1).
theta=reshape(theta, n, []);
num_classes=size(theta,2)+1;

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