nansum (Statistics Toolbox)

Sum ignoring NaNs.

Syntax

y = nansum(X)

Description

nansum(X) the sum treating NaNs as missing values.

For vectors, nansum(x) is the sum of the non-NaN elements of x. For matrices, nansum(X) is a row vector containing the sum of the non-NaN elements in each column of X.

Example

m = magic(3);
m([1 6 8]) = [NaN NaN NaN]

m =

   NaN     1     6
     3     5   NaN
     4   NaN     2


nsum = nansum(m)

nsum =

     7     6     8