[Numpy-discussion] Distance Formula on an Array
Eric Firing
efiring@hawaii....
Sun Apr 26 17:48:53 CDT 2009
Ian Mallett wrote:
> Yeah, I ended up finding the [0] bit at the end through trial and
> error. I actually do need the indices, though.
If you are not already doing so, I strongly recommend using ipython. It
is enormously useful in accessing docstrings (type a function name
followed by a question mark), source code (same, but with two question
marks), listing namespaces, finding functions, testing, running the pdb
debugger, etc.
>
> I'm having a strange new problem though.
> numpy.array([1,2,3])
> is returning a sequence??? I'm really confused.
In ipython:
In [1]:import numpy as np
In [2]:x = np.array([1,2,3])
In [3]:type(x)
Out[3]:<type 'numpy.ndarray'>
In [4]:x
Out[4]:array([1, 2, 3])
The term "sequence" is a generality to include tuples, lists, ndarrays,
and potentially other such ordered containers.
But where are you seeing the ndarray instance created by numpy.array()
referred to as a "sequence"? It's not wrong, but I can see why you
might not expect it.
Eric
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