- statistics: s = nansum (x)
- statistics: s = nansum (x, dim)
- statistics: s = nansum (…, "native")
- statistics: s = nansum (…, "double")
- statistics: s = nansum (…, "extra")
 Compute the sum while ignoring NaN values.
 nansum is identical to the sum function except that NaN
 values are treated as 0 and so ignored.  If all values are NaN, the sum is
 returned as 0.
 See help text of sum for details on the options.
 See also: 
sum, 
  nanmin, 
  nanmax
Source Code: 
  nansum