mean of two matrixes with Nans, element per element

[poster]

<p>I want to have the nanmean of two matrixes element per element. I don't seem to be able to do it using the function <code>nanmean</code>, since that doesn't sum element per element.</p>

<p>Simplified example:</p>

<pre><code>A= [1 1 1
1 1 1
1 nan 1];

B=[3 3 3
3 3 3
3 3 3];
</code></pre>

<p>Result I want :</p>

<pre><code>C= [2 2 2
2 2 2
2 3 2];
</code></pre>

<p>So the nan is ignored.</p>

<p>One way to sum element per element I found on <a href="https://nl.mathworks.com/matlabcentral/answers/366304-how-to-sum-up-multiple-matrices-element-by-element" rel="nofollow noreferrer">https://nl.mathworks.com/matlabcentral/answers/366304-how-to-sum-up-multiple-matrices-element-by-element</a> </p>

<pre><code>A(:,:,1)=randi([1 3],100,100);
A(:,:,2)=randi([1 3],100,100);
A(:,:,3)=randi([1 3],100,100);
A(:,:,4)=randi([1 3],100,100);
B=zeros(size(A,1),size(A,2));
for i=1:size(A,3)
B=B+A(1:size(A,1),1:size(A,2),i);
end
disp(B)
</code></pre>

<p>BUT this isn't the nansum. How can I do this not taking into account the nans?</p>



More answer... (https://stackoverflow.com/questions/59033516/mean-of-two-matrixes-with-nans-element-per-element)