quantileSeries

Syntax

quantileSeries(X, q, [interpolation=’linear’])

Arguments

X is a numeric vector.

q is a scalar or vector of floating numbers between 0 and 1.

interpolation is a string indicating how to interpolate if the quantile is between element i and j in X with i<j. It can take the following values and the default value is ‘linear’.

• ‘linear’: i+ (j-i)*fraction where fraction is the decimal part of q*size(X).

• ‘lower’: i

• ‘higher’: j

• ‘nearest’: i or j whichever is nearest.

• ‘midpoint’: (i+ j)/2

Details

Return values at the given quantile in X.

Examples

$ a=[6, 47, 49, 15, 42, 41, 7, 39, 43, 40, 36];
$ quantileSeries(a,[0.25,0.5,0.75]);
[25.5,40,42.5]

$ quantileSeries(a,[0.25,0.5,0.75], 'higher');
[36,40,43]

Related function: quantile