Using isnan to check if there is any NaNs in a window and setting all the values to NaN if there are any.

I'm trying to use isnan to find if there is any NaNs in y in a window of 12 time points and if there are set all values for X in the window to NaN. but I'm running into some issues.

This is the code I've used

for i=1:11:T;
    for k=1:3;
        if isnan(y(i:i+11,k));
           X(i:i+11,k) =NaN;
        end
    end
end

The part I believe is the issue is "if isnan(x(i:i+11,k))", because if I use if isnan(x(i,k)) it works but then it only sets X(i:i+11,k) to NaN if the i'th y is NaN (i.e it doesn't check the whole window)

Any ideas of what I could do?

Answer 1

[Walter Roberson]

for i=1:11:T;
    for k=1:3;
        if any(isnan(y(i:i+11,k)))
           X(i:i+11,k) =NaN;
        end
    end
end