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Groups > comp.lang.python > #42455
| From | Peter Otten <__peter__@web.de> |
|---|---|
| Subject | Re: How to do this? |
| Date | 2013-04-01 13:32 +0200 |
| Organization | None |
| References | <83a54022-576d-465b-b6bd-7e21cde59d99@googlegroups.com> <mailman.4051.1364813918.2939.python-list@python.org> <29fa109e-8ed0-4b1b-a9c0-473e2bace687@googlegroups.com> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.4053.1364815917.2939.python-list@python.org> (permalink) |
Ana Dionísio wrote:
> Nice! Thank you!
>
> And if I need something like this?
>
> [0 0 0 0 0.17 0.17 0.17 0.17 0 0 0 0.17 0.17 0.17 0 0 0 0 0 0 0]
>
> How can I do this?
With vanilla Python:
>>> vt = [0] * 20
>>> for i, v in enumerate(vt):
... if 4 <= i < 8 or 13 <= i < 16:
... vt[i] = .17
...
>>> vt
[0, 0, 0, 0, 0.17, 0.17, 0.17, 0.17, 0, 0, 0, 0, 0, 0.17, 0.17, 0.17, 0, 0,
0, 0]
With vanilla Python using slices:
>>> vt = [0] * 20
>>> vt[4:8] = [.17]*4
>>> vt[13:16] = [.17]*3
>>> vt
[0, 0, 0, 0, 0.17, 0.17, 0.17, 0.17, 0, 0, 0, 0, 0, 0.17, 0.17, 0.17, 0, 0,
0, 0]
With numpy:
>>> vt = numpy.zeros(20)
>>> vt[4:8] = vt[13:16] = .17
>>> vt
array([ 0. , 0. , 0. , 0. , 0.17, 0.17, 0.17, 0.17, 0. ,
0. , 0. , 0. , 0. , 0.17, 0.17, 0.17, 0. , 0. ,
0. , 0. ])
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How to do this? Ana Dionísio <anadionisio257@gmail.com> - 2013-04-01 03:14 -0700
Re: How to do this? Vincent Vande Vyvre <vincent.vandevyvre@swing.be> - 2013-04-01 12:58 +0200
Re: How to do this? Ana Dionísio <anadionisio257@gmail.com> - 2013-04-01 04:08 -0700
Re: How to do this? Peter Otten <__peter__@web.de> - 2013-04-01 13:32 +0200
Re: How to do this? Dave Angel <davea@davea.name> - 2013-04-01 07:53 -0400
Re: How to do this? Ana Dionísio <anadionisio257@gmail.com> - 2013-04-01 04:08 -0700
Re: How to do this? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2013-04-01 13:28 +0100
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