Re: [Matplotlib-users] Hz to KHz

[<PH...@Ge...>]

Replace this line:
  ax.plot(f/1000, Sserie)

With this line:
  ax.plot(f/1000.0, Sserie)

And tell us how things go. Python 2.6 distinguishes between integers and floats very strictly. Hence:
In [1]: 20/1000
Out[1]: 0

In [2]: 20.0/1000.0
Out[2]: 0.02

See the difference?
-paul

From: Waléria Antunes David [mailto:wal...@gm...]
Sent: Monday, July 26, 2010 10:01 AM
To: Angus McMorland
Cc: mat...@li...
Subject: Re: [Matplotlib-users] Hz to KHz

i don't understand..
On Mon, Jul 26, 2010 at 1:57 PM, Angus McMorland <am...@gm...<mailto:am...@gm...>> wrote:
On 26 July 2010 12:47, Waléria Antunes David <wal...@gm...<mailto:wal...@gm...>> wrote:
> My code like this in django: http://pastebin.com/nzM5jvuc
Are you perhaps suffering from integer division? How about dividing by
1000.0, instead of 1000?

Angus.

> i'm lost
>
> On Mon, Jul 26, 2010 at 1:42 PM, <PH...@ge...<mailto:PH...@ge...>> wrote:
>>
>> Make sure that you're dividing by 1000.0 (as opposed to 1000) to avoid any
>> integer nonsense and make sure to reset your axis limits.
>>
>>
>>
>> Posting a small code snippet would help us get you on the right track.
>>
>> -p
>>
>>
>>
>> From: Waléria Antunes David [mailto:wal...@gm...<mailto:wal...@gm...>]
>> Sent: Monday, July 26, 2010 9:32 AM
>> To: Matthieu Brucher
>> Cc: mat...@li...<mailto:mat...@li...>
>> Subject: Re: [Matplotlib-users] Hz to KHz
>>
>>
>>
>> I know...I tried but I'm using django and also when divided by 1000 the
>> image does not appear...
>> I don't know what to do.....help me....
>>
>> On Mon, Jul 26, 2010 at 1:27 PM, Matthieu Brucher
>> <mat...@gm...<mailto:mat...@gm...>> wrote:
>>
>> Hi,
>>
>> You may just divide them by 1000?
>>
>> Matthieu
>>
>> 2010/7/26 Waléria Antunes David <wal...@gm...<mailto:wal...@gm...>>:
>>
>> > Hello all,
>> >
>> > I need to format the values of graphic to KHz.....my values are in Hz
>> > see at idle python it displays the values as: 3000 3050 3100 .... 3400 ,
>> > but
>> > I need to go where it will be displayed KHz:  3.0 3.1
>> >
>> > can someone help me?
>>
>> >
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>>
>>
>>
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>
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--
AJC McMorland
Post-doctoral research fellow
Neurobiology, University of Pittsburgh