Author: | Pierre Barbier de Reuille <pierre.barbierdereuille@gmail.com> |
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Module contained a variety of small useful functions.
Returns a new subclass of tuple with named fields.
>>> Point = namedtuple('Point', 'x y')
>>> Point.__doc__ # docstring for the new class
'Point(x, y)'
>>> p = Point(11, y=22) # instantiate with positional args or keywords
>>> p[0] + p[1] # indexable like a plain tuple
33
>>> x, y = p # unpack like a regular tuple
>>> x, y
(11, 22)
>>> p.x + p.y # fields also accessable by name
33
>>> d = p._asdict() # convert to a dictionary
>>> d['x']
11
>>> Point(**d) # convert from a dictionary
Point(x=11, y=22)
>>> p._replace(x=100) # _replace() is like str.replace() but targets named fields
Point(x=100, y=22)
Approximate the Jacobian matrix of callable function func
Parameters: |
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Returns: | An array of dimensions (lenf, lenx) where lenf is the length of the outputs of func, and lenx is the number of |
Note
The approximation is done using forward differences