why computeCost function shows incorrect dimension error in second call?
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h = X * theta;
sq_error = (h - y) .^ 2;
J = 1/(2*m) * sum(sq_error);
correcting the code with error message shows error in first call too.
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Answers (1)
Hritika Suneja
on 31 Dec 2020
Edited: Hritika Suneja
on 4 Jan 2021
As the error suggests , the dimensions of the matrix being multiplied might not be consistent. In order to multiply 2 matrix the number of columns in the first matrix should match the number of rows in the second matrix. This condition might not be getting satisfied in your code and hence this error occurs.
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