Note that, as with most matlab functions, calling rmmissing without assigning its output to anything is a big waste of time. You're just throwing away whatever the function does.
The easiest way to do what I assume you want:
newInfoStatus = cellfun(@rmmissing, InfoStatus_dias, 'UniformOutput', false);
The loop equivalent of the above line, if you don't like cellfun:
newInfoStatus = cell(size(InfoStatus_dias));
for k = 1:numel(InfoStatus_dias)
newInfoStatus{k} = rmmissing(InfoStatus_dias{k}); %I recommend that you use 1D indexing in vector, {k} instead of {1,k} or {k, 1}
end
