Why is it showing Matrix dimensions must agree and how do i fix this?

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评论： Abhey Pal Singh Kumar 2018-4-14

It shows this while i try to implement a while loop. I want the loop to keep repeating until user types the correct variable as written earlier.

Walter Roberson 2018-4-14

Do not use = or ~= to compare character vectors. Use strcmp() instead.

(With R2016b or later, you can use = and ~= to compare string objects, but you are not using string objects.)

Reminder: we cannot copy and paste a screen snapshot to test with, especially when the screen snapshot cuts off the code.

Walter Roberson 2018-4-14

if ~ismember(gh, {'f', 'in', 'fe', 'mi', ...})
 disp(...)
 ...
end

Thanks so much. All working now

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