[Numpy-discussion] Dynamic array list implementation

[Chris Barker]

sorry for being so lazy as to not go look at the project pages, but....

This sounds like it could be really useful, and maybe supercise a coupl eof
half-baked projects of mine. But -- what does "dynamic" mean?

- can you append to these arrays?
- can it support "ragged arrrays" -- it looks like it does.

>
> >>> L = ArrayList( [[0], [1,2], [3,4,5], [6,7,8,9]] )
> >>> print(L)
> [[0], [1 2], [3 4 5], [6 7 8 9]]
>
> so this looks like a ragged array -- but what do you get when you do:

for row in L:
    print row



> >>> print(L.data)
> [0 1 2 3 4 5 6 7 8
>
> is .data a regular old 1-d numpy array?

>>> L = ArrayList( np.arange(10), [3,3,4])
> >>> print(L)
> [[0 1 2], [3 4 5], [6 7 8 9]]
> >>> print(L.data)
> [0 1 2 3 4 5 6 7 8 9]
>
> does an ArrayList act like a numpy array in other ways:

L * 5

L* some_array

in which case, how does it do broadcasting???

Thanks,

-CHB

>>> L = ArrayList(["Hello", "world", "!"])
> >>> print(L[0])
> 'Hello'
> >>> L[1] = "brave new world"
> >>> print(L)
> ['Hello', 'brave new world', '!']
>
>
>
> Nicolas
>
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>


-- 

Christopher Barker, Ph.D.
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