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Re: Constructing arrays
From: |
Martin Helm |
Subject: |
Re: Constructing arrays |
Date: |
Mon, 26 Jul 2010 13:44:18 +0200 |
User-agent: |
KMail/1.12.4 (Linux/2.6.31.12-0.2-desktop; KDE/4.3.5; x86_64; ; ) |
Am Montag, 26. Juli 2010 13:15:41 schrieb dirac:
> Hi again,
>
> Probably another really simple problem: I have a vector that I want to plot
> values from given the indecies of the particular data I need. The indecies
> are stored in another column vector. Is there a function that will do this
> in Octave?
>
> Many thanks
> Martin
>
> -----
> Pretty much convinced Octave>Excel for scientific data analysis!
>
You can index one vector with the indexes stored in another that way
octave:1> a = 10:20;
octave:2> b = [3 7 4];
octave:3> a(b)
ans =
12 16 13
So assuming the vector with the indexes is b and the vector with the values is
a you would simply
plot(a(b))
- mh
- Constructing arrays, dirac, 2010/07/26
- Re: Constructing arrays,
Martin Helm <=
- Re: Constructing arrays, dirac, 2010/07/26
- Re: Constructing arrays, Martin Helm, 2010/07/26
- RE: Constructing arrays, dirac, 2010/07/26
- Re: Constructing arrays, Andy Buckle, 2010/07/26
- Re: Constructing arrays, dirac, 2010/07/26
- Re: Constructing arrays, Andy Buckle, 2010/07/26
- Re: Constructing arrays, Martin Helm, 2010/07/26
- Re: Constructing arrays, dirac, 2010/07/27
- Re: Constructing arrays, John W. Eaton, 2010/07/27
- Re: Constructing arrays, dirac, 2010/07/28