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will99
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How to plot data against samples

Asked by will99
on 9 Oct 2015
Latest activity Commented on by Star Strider
on 9 Oct 2015
let say I have sample 1000 and myData = rand(1,samples) how can I plot myData against samples do I tried
figure
plot(myData);
and
figure
plot(sample);
but I got nothing show on my window

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1 Answer

Answer by Star Strider
on 9 Oct 2015

See if this does what you want:
figure(1)
plot(myData)
hold on
plot(sample)
hold off

  2 Comments

it didn't work I only got think straight line on the x-axis
It actually did work. Your ‘sample’ is a single data point plotted at (0,1000). Your ‘myData’ vector are a sequence of random floating-point numbers on the interval (0,1). The plot scales them linearly in both axes, so the random vector appears as a line on the x-axis.
To see this, plot them logarithmically:
sample = 1000;
myData = rand(1,sample);
figure(1)
semilogy(myData, '-r')
hold on
plot(sample, 'bp')
hold off

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