How to plot portion of a vector in matlab?
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MatlabFan
am 9 Feb. 2013
Kommentiert: Chris
am 9 Dez. 2014
Hi,
I am trying to plot a portion (from indis to length(vector)) of a vector (vector) in matlab using the following syntax:
plot(-vector(indis:length(vector))+1)
I don't know what indis will be, that's why my only option is to use indis in the plotting syntax. My issue is that matlab plots -vector(1:length(vector))+1 instead of plotting it as I demanded.
Please help me with this issue.
I would really appreciate your help.
Thanks.
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Akzeptierte Antwort
Shashank Prasanna
am 9 Feb. 2013
The following piece of code must make things clearer: I make few modifications, Notice I plot with respect to 'x'. If you don't then MATLAB will always assume x = 1:length(vector)
% Create Data
x=0:0.1:2*pi;
vector = sin(0:0.1:2*pi);
% Plot everything
indis=1;
plot(x(indis:length(vector)),-vector(indis:length(vector))+1,'r--');
axis([0 6 0 2])
hold on
% Plot from 20 onwards
indis=20;
plot(x(indis:length(vector)),-vector(indis:length(vector))+1);
axis([0 6 0 2])
2 Kommentare
Weitere Antworten (1)
Azzi Abdelmalek
am 9 Feb. 2013
Bearbeitet: Azzi Abdelmalek
am 9 Feb. 2013
v=1:100
plot(v(40:end))
2 Kommentare
Azzi Abdelmalek
am 9 Feb. 2013
Bearbeitet: Azzi Abdelmalek
am 9 Feb. 2013
You don't need length(vector). just write
y=1-vector(indis:end)
plot(y)
but you need to assign a value to indis
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