NANSUM same as SUM but ignores NaN's. NANSUM is OBSOLETE; use SUMSKIPNAN instead. NANSUM is included to fix a bug in some other versions. Y = nansum(x [,DIM]) DIM dimension 1 sum of columns 2 sum of rows default or []: first DIMENSION with more than 1 element Y resulting sum see also: SUM, SUMSKIPNAN, NANSUM