[SciPy-dev] What is this dispatch thing ?
robert.kern at gmail.com
Thu Jul 20 11:26:06 CDT 2006
David Huard wrote:
> I just updated scipy from svn and stats.linregress(x,y) returns
> /usr/lib/python2.4/site-packages/stats.py in __call__(self, arg1, *args,
> 244 def __call__(self, arg1, *args, **kw):
> 245 if type(arg1) not in self._types:
> --> 246 raise TypeError, "don't know how to dispatch %s
> arguments" % type(arg1)
> 247 return apply(self._dispatch[type(arg1)], (arg1,) + args, kw)
> TypeError: don't know how to dispatch <type ' numpy.ndarray'> arguments
> Also, in ipython, linregress? returns a doc about the dispatch class. Is
> this intended ?
That version of stats.py is not from scipy. That version tried to handle lists
as well as arrays. The functions for each type were wrapped by a dispatching
class that would call the appropriate version depending on the argument type.
That version of stats.py was written for Numeric and cannot deal with numpy arrays.
"I have come to believe that the whole world is an enigma, a harmless enigma
that is made terrible by our own mad attempt to interpret it as though it had
an underlying truth."
-- Umberto Eco
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