Check if all elements of cell array are equal to a certain value?

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Thadeus
Thadeus 2023-4-10
评论： Thadeus 2023-4-10
Hello,
I have been trying find a way to check if all the elements of my cell array are equal to certain value.
I need help on how someone can perform this task.

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回答（2 个）

Ran Yang
Ran Yang 2023-4-10
If your cell array only contains numbers, then you should convert it to a regular array using cell2mat, then test equality using ==.
x = {2 5; 3 5}; % example cell array
y = cell2mat(x);
all(y == 5, 'all') % check if all entries are 5
Praveen Reddy
Praveen Reddy 2023-4-10
Hi Thadeus,
I understand that you want to compare all the values of a cell array against some value. You can use “isequal” function to achieve this. First check if all the cell array values are equal and then compare any of the cell array value against the desired value.
A = repmat({10},1,9);
B = {[10,10,1],[10,10,1],[10,10,1]};
logicalVal1=(isequal(A{:}) && A{1}==10); % logicalValue outputs to true
logicalVal2=(isequal(B{:}) && isequal(B{1},[10,10,1]));% logicalValue outputs to true
logicalVal3=(isequal(B{:}) && isequal(B{1},[10,0,1]));% logicalValue outputs to false
To know more about “isequal” function, please refer to the following MATLAB documentation:
https://www.mathworks.com/help/matlab/ref/isequal.html

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