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NaN Toolbox >> NaN Toolbox > Descriptive Statistics > nan_iqr

nan_iqr

calculates the interquartile range

Calling Sequence

Q = nan_iqr(Y)
Q = nan_iqr(Y,DIM)
Q = nan_iqr(HIS)

Parameters

Q:

IQR along dimension DIM of sample array Y.

HIS:

must be a HISTOGRAM struct as defined in HISTO2 or HISTO3.

Description

Missing values (encoded as NaN) are ignored.

Examples

x = grand(100,100,'nor',0,1);
s = nan_std(x);
s_IQR = 0.7413*nan_iqr(x);
efficiency = (norm(s-1)./norm(s_IQR-1)).^2
efficiency =
0.3297

See also

Authors


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