cf.Data.func

Data.func(f, units=None, out=False, i=False, **kwargs)[source]

Apply an element-wise array operation to the data array.

Parameters:
f: function

The function to be applied.

units: cf.Units, optional

out: bool, optional

i: bool, optional

If True then update the data array in place. By default a new data array is created.
Returns:

out: cf.Data
Examples: 
>>> d.Units
<CF Units: radians>
>>> print d.array
[[ 0.          1.57079633]
 [ 3.14159265  4.71238898]]
>>> import numpy
>>> e = d.func(numpy.cos)
>>> e.Units
<CF Units: 1>
>>> print e.array
[[ 1.0  0.0]
 [-1.0  0.0]]
>>> d.func(numpy.sin, i=True)
>>> print d.array
[[0.0   1.0]
 [0.0  -1.0]]