nearest_interp

sherpa.utils.nearest_interp(xout, xin, yin)

Nearest-neighbor one-dimensional interpolation.

Parameters:

xoutarray_like

The positions at which to interpolate.

xinarray_like

The x values of the data to interpolate. This must be sorted so that it is monotonically increasing.

yinarray_like

The y values of the data to interpolate (must be the same size as xin).

Returns:

youtNumPy array of numbers

The interpolated y values (same size as xout).

See also

interpolate, linear_interp, neville

Examples

>>> import numpy as np
>>> x = np.asarray([1.2, 3.4, 4.5, 5.2])
>>> y = np.asarray([12.2, 14.4, 16.8, 15.5])
>>> xgrid = np.linspace(2, 5, 5)
>>> ygrid = nearest_interp(xgrid, x, y)