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    %% Sum Excluding |NaN|
% Create a vector and compute its sum, excluding |NaN| values.

% Copyright 2015 The MathWorks, Inc.

A = [1.77 -0.005 3.98 -2.95 NaN 0.34 NaN 0.19];
S = sum(A,'omitnan') 

%%
% If you do not specify |'omitnan'|, then |sum(A)| returns |NaN|.