How can I avoid plotting zeros in data?

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Andrew Wileman
Andrew Wileman 2015-11-17
评论： Andrew Wileman 2015-11-17
Hi, Once again, hoping someone may be able to help. I'm plotting data at intervals and would like to join up the peaks so it makes a nice smooth graph(please see attached diagram). At present, there are zeros between each data point, and Matlab plots these making a nasty triangulated spike for each data point. Is there anyway of just plotting the data points? Hoping someone may be able to help, Andy

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Thorsten
Thorsten 2015-11-17
Sample data:
y = zeros(1,100); y(1:10:100) = 1 + rand(1,10);
plot(y)
hold on
Select only non-zero values for plotting:
x = 1:numel(y);
plot(x(y~=0), y(y~=0), 'r')

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