ask to change input values and derive a new matrix

I have W, and I want to be asked if I want to change any of the numbers in W(1,1), W(2,1), W(3,1), and W(4,1).

W =

[2;

3;

4;

2;];

If let say, I've been asked to change them, I would like to input W(1,1) = 1, W(2,1) =2, W(3,1)=3, and W(4,1)=4.

and my new W will have the following values

W=

[1;

2;

3;

4;];

Answer 1

[madhan ravi]

I was blind sided in your previous question (because some of your questions were a bit advanced), but you seem to be asking the basic questions in MATLAB. I suggest you to read one of my favourite articles:

https://in.mathworks.com/company/newsletters/articles/matrix-indexing-in-matlab.html

and when you have a doubt about a certain function for instance sub2ind() go to command window and type

doc sub2ind
help sub2ind

[JL]

Thanks for the article, I got what I needed.

[JL]

Ah yes, it has been a while since I last used matlab,hence, you get a range of questions. I have another question, and was wondering you can help? https://uk.mathworks.com/matlabcentral/answers/475547-list-combinations-and-count-how-many-it-appears