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nansum - Sum ignoring NaNs

Syntax

y = nansum(X)
y = nansum(X,DIM)

Arguments

X	Financial time series object.
DIM	Dimension along which the operation is conducted.

Description

nansum for financial times series objects is based on the Statistics Toolbox function nansum. See nansum in the Statistics Toolbox documentation.

y = nansum(X) returns the sum of a financial time series object X, treating NaNs as missing values. y is the sum of the non-NaN elements in X.

y = nansum(X,DIM) takes the sum along dimension DIM of X.

Examples

To compute nansum for the following dates:

dates = {'01-Jan-2007';'02-Jan-2007';'03-Jan-2007'};
f = fints(dates, magic(3));
f.series1(1) = nan;
f.series2(3) = nan;
f.series3(2) = nan;

nsum = nansum(f)

nsum =
     7     6     8

See Also

nanmax, nanmean, nanmedian, nanmin, nanstd, nanvar

nanstd

nanvar

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