atompy.integral_sum

atompy.integral_sum(bincenters, y_data, lower=-inf, upper=inf)

Get the integral of a histogram by summing the counts weighted by the binsize. The binsize needs to be constant.

Parameters:

bincentersarray_like

center of bins. All bins should have equal size, otherwise return doesn’t make sense

y_dataarray_like

corresponding data

lower, upperfloat

only calculate integral within these bounds, including edges

Returns:

integralfloat

The value of the intergral

Examples

::

>>> import numpy as np
>>> import atompy as ap
>>> x, y = np.linspace(0, 2, 5), np.linspace(0, 4, 5)**2
>>> x, y
>>> ap.integral_sum(x, y)
15.0