Apply function to two cell arrays element-wise
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I have two cell arrays, xdata and CDF. I want to apply kstest element-wise to each pair of xdata and CDF cells (e.g., xdata{1} and CDF{1}, xdata{2} and CDF{2}, etc.).
Each cell of xdata is nx1 (data sample values), and each cell of CDF ix nx2 (theoretical [x,CDF] values).
I can do this with a for loop:
for i=1:length(xdata)
[h{i},p{i},ks2stat{i}]=kstest(xdata{i},CDF{i});
end
But I'm wondering if there's a clever way to do it more cleanly with anonymous functions and cellfun? Something along the lines of:
[h,p,ks2stat]=deal(cellfun(@(xc) kstest(xc(:,1),xc(:,2:3)),{[xdata CDF]},'Uniform',0));
Any ideas would be appreciated. Thanks!
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Guillaume
am 2 Feb. 2018
You're overcomplicating:
[h, p, k2stat] = cellfun(@kstest, xdata, CDF, 'UniformOutput', false);
3 Kommentare
Guillaume
am 5 Feb. 2018
Bearbeitet: Guillaume
am 5 Feb. 2018
"I have two cell arrays, xdata and CDF"
input #2 expected to be a cell array, was double instead
One of these statement contradicts the other.
Putting brackets around the inputs is very unlikely to be the correct fix. It would only work if both xdata and CDF were matrices, not cell array and would then be simply equivalent to:
[h, p, k2stat] = ktest(xdata, CDF);
h = {h}; p = {p}; k2stat = {k2stat}; %useless stuffing of the results in cell arrays
And if xdata and CDF were really structures then your code would certainly error. Be careful with the terms you use. cell arrays, matrices, structures, tables (another term often misused) are very different types.
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