Eric wrote:
On Nov 11, 1:51 pm, Marc 'BlackJack' Rintsch <[EMAIL PROTECTED]> wrote:
On Tue, 11 Nov 2008 11:47:53 -0800, Eric wrote:
I'm learning Python (while coming from MATLAB). One question I have is
that if I have a list with say 8 elements, and I want just a few of them
how do I select them out. In MATLAB, if I just want the first, fifth and
eighth element I might do something like this:
b = a([1 5 8]);
I can't seem to figure out a similar Python construct for selecting
specific indices. Any suggestions?
b = [a[i] for i in [1, 5, 8]]

Ciao,
        Marc 'BlackJack' Rintsch

Thanks! It makes sense, but in this case MATLAB seems easier and no
less readable. That said, I know better than for a newbie like me to
question syntax issues.

In my experience, I never do this with lists so there's no optimized syntax for it. I do use it very often with numpy arrays, and that does have optimized syntax.

--
Robert Kern

"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

--
http://mail.python.org/mailman/listinfo/python-list

Reply via email to