Python and arrays

[barney75]

Hy guys,
I need an help on how to manipulate arrays in python using the module Numeric or array.
Consider the following array a

a = reshape(arange(9),(3,3))
>>> print a
[[0 1 2]
[3 4 5]
[6 7 8]]

ok, now how is it possible (any command?) to add a new row let say [9,10,11] to the array a in order to get a new matrix a as follows:

[[0 1 2]
[3 4 5]
[6 7 8]
[9 10 11]]

I need to know it in order to assemble a matrix recursively inside a loop.

Thanks bye

 

[DanStro]

I think it should just be:

a.append([9,10,11])

HTH
Dan

 

[barney75]

Hi DanStro
thanks for your advice, but it doesn't work. As far as I know the append method is available in array module. I've imported the array module and tried your solution but it seems that a.append() require a float as input in brackets therefore u can not give [9,10,11]. As said previously I need to assemble an array in a loop in order to use slicing methods.

Any other advice will be appreciate.

Bye

Thanks