xarray.DataArray.integrate¶
-
DataArray.
integrate
(dim, datetime_unit=None)¶ integrate the array with the trapezoidal rule.
Note
This feature is limited to simple cartesian geometry, i.e. coord must be one dimensional.
Parameters: - dim: str, or a sequence of str
Coordinate(s) used for the integration.
- datetime_unit: str, optional
Can be used to specify the unit if datetime coordinate is used. One of {‘Y’, ‘M’, ‘W’, ‘D’, ‘h’, ‘m’, ‘s’, ‘ms’, ‘us’, ‘ns’,
‘ps’, ‘fs’, ‘as’}
Returns: - integrated: DataArray
See also
numpy.trapz
- corresponding numpy function
Examples
>>> da = xr.DataArray(np.arange(12).reshape(4, 3), dims=['x', 'y'], ... coords={'x': [0, 0.1, 1.1, 1.2]}) >>> da <xarray.DataArray (x: 4, y: 3)> array([[ 0, 1, 2], [ 3, 4, 5], [ 6, 7, 8], [ 9, 10, 11]]) Coordinates: * x (x) float64 0.0 0.1 1.1 1.2 Dimensions without coordinates: y >>> >>> da.integrate('x') <xarray.DataArray (y: 3)> array([5.4, 6.6, 7.8]) Dimensions without coordinates: y