How can I avoid plotting zeros in data?

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

Answer 1

[Thorsten]

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')

[Andrew Wileman]

Brilliant, works perfectly. Once again,many thanks Thorsten.