nanmean (Statistics Toolbox)

Mean ignoring NaNs

Syntax

y = nanmean(X)

Description

nanmean(X) the average treating NaNs as missing values.

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

Example

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

m =

   NaN     1     6
     3     5   NaN
     4   NaN     2

nmean = nanmean(m)

nmean =

    3.5000    3.0000    4.0000