On Sat, Jul 26, 2008 at 03:08:45AM -0400, Kent Johnson wrote:
> On Fri, Jul 25, 2008 at 7:35 PM, Mike Meisner <[EMAIL PROTECTED]> wrote:
> > Do you happen to know if there is an efficient way to initialize a list
> > like this without explicitly writing out each element?
>
> You can make a copy o
On Fri, Jul 25, 2008 at 8:20 PM, Michiel Overtoom <[EMAIL PROTECTED]> wrote:
> Mike wrote...
>
>>Do you happen to know if there is an efficient way to initialize a list
>>like this without explicitly writing out each element?
>
temp = [[0, 0, 0],[0, 0, 0],[0, 0, 0]]
print temp
> [[0, 0,
On Fri, Jul 25, 2008 at 7:35 PM, Mike Meisner <[EMAIL PROTECTED]> wrote:
> Do you happen to know if there is an efficient way to initialize a list
> like this without explicitly writing out each element?
You can make a copy of the inner list each time through the loop:
IP = []
temp = [[0,
On Sat, 2008-07-26 at 02:20 +0200, [EMAIL PROTECTED] wrote:
> Message: 8
> Date: Fri, 25 Jul 2008 19:35:54 -0400
> From: "Mike Meisner" <[EMAIL PROTECTED]>
> Subject: Re: [Tutor] List indexing problem
> To: "Steve Willoughby" <[EMAIL PROTECTED]&g
Mike wrote...
>Do you happen to know if there is an efficient way to initialize a list
>like this without explicitly writing out each element?
>>> temp = [[0, 0, 0],[0, 0, 0],[0, 0, 0]]
>>> print temp
[[0, 0, 0], [0, 0, 0], [0, 0, 0]]
>>> print [[0]*3]*3
[[0, 0, 0], [0, 0, 0], [0, 0, 0]]
--
ED]>
To: "Mike Meisner" <[EMAIL PROTECTED]>
Cc:
Sent: Friday, July 25, 2008 7:03 PM
Subject: Re: [Tutor] List indexing problem
Mike Meisner wrote:
I need to do some statistical analysis by binning values into an array.
Being new to Python, I tried to use a list of lists. I&#x
"Mike Meisner" <[EMAIL PROTECTED]> wrote
def testanalysis():
IP = []
temp = [[0, 0, 0],[0, 0, 0],[0, 0, 0]]
# initialize to zero
for i in range(20):
IP.append(temp)
this appends the same list (temp) 20 times. So when you
change the list it is reflected 20 times. Lists hold
Mike Meisner wrote:
I need to do some statistical analysis by binning values into an array.
Being new to Python, I tried to use a list of lists. I've extracted
just the minimum code that I'm having trouble with:
What you need to remember is that Python works with *objects*, and
variables a
