MATLAB: How do i discretize negative integers

discretize

[~, discrete_x] = histc(x, edges);
discrete_x(discrete_x == length(edges)) = length(edges)-1;
discrete_x(discrete_x == 0) = NaN;
This works for positive integers only. what do i do if i have to do it for negative integers?

Best Answer

"This works for positive integers only"
Actually histc works perfectly for negative values. It works for me:
>> x = 4-randi(9,1,10)
x =
  -2  -5  -5   1  -1  -5   1   1   2   0
>> edges = -6:4:6
edges =
  -6  -2   2   6
>> [~, idx] = histc(x, edges)
idx =
   2   1   1   2   2   1   2   2   3   2
>> vec = x(idx)
vec =
  -5  -2  -2  -5  -5  -2  -5  -5  -5  -5
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