How to solve dimension mismatch?

Hello,

I have a matrix named "X" that firstly starts with 27x2 but then it goes into a while loop and after some calculations the row value and the elements change, sometimes to a greater value than 27 and sometimes a lower value for example: sometimes it becomes 35x2 and sometimes it becomes 12x2, and I keep this as a new matrix "Y" . And when I want to put that Y matrix inside of X, it gives dimension mismatch. Is there a way to solve this, if so I will appreciate your help.

Thanks!

Answer 1

[Walter Roberson]

S=size(Y);
X(1:S(1),1:S(2)) = Y;

This will extend X if needed, but if the new Y is smaller then only the "upper left" will be changed to Y leaving the rest unchanged.

[Iremsu Savas]

Thank you for your answer, when Y is smaller, if just the upper left changes and the others remain the same, it is a huge problem for the code flow. Is there something you suggest to avoid this?

[Walter Roberson]

You need to define the results that you want in that case. It sounds like you want something different than just X=Y; but we do not know what.