VSUM Sum over non-NaN elements along a specified dimension. Y=VSUM(X,DIM) takes the sum of all non-NaN elements of X along dimension DIM. [Y,NUM]=VSUM(X,DIM) also outputs the number of non-NaN data points NUM, which has the same dimension as Y. [Y1,Y2,...YN]=VSUM(X1,X2,...XN,DIM) also works. VSUM(X1,X2,...XN,DIM); with no output arguments overwrites the original input variables. __________________________________________________________________ This is part of JLAB --- type 'help jlab' for more information (C) 2001--2016 J.M. Lilly --- type 'help jlab_license' for details