plot errorbars on graph for selected points

Hi! I want to plot a graph of my datapoints with some errorbars. However, since i have 600 datapoints, i get 600 errorplots. That looks very messy. I wrote a script that enables selection of specific points by clicking on it. A parameter is generated which consists of zeros and only standard deviation values on the clicked datapoints. However when I plot this, it still looks messy because the bars for a standard deviation with value 0 is still displayed. Does anyone know how to get rid of these? Thanks!

This is my script:

(C_av_smooth1 containes my 600 datapoints and std_dev1 containes the standard deviation of each of these points.)

% plot graph and select the points where you want the errorbars

figure;

plot(C_av_smooth1,"LineWidth", 1)

bar_points=int16(getpts());

% list of zeros as long as the amount of data points

stdtest=zeros(1,length(std_dev1));

for i=1:length(stdtest)

for j=1:length(bar_points)

if i==bar_points(j)

stdtest(i)=std_dev1(i);

i=i+1;

end

end

end

% plot graph with errorbars on desired place

figure;

errorbar(C_av_smooth1,stdtest)

Answer 1

[Nikhil Sonavane]

You can use a for loop to scan your data and neglect data whose standard deviation is zero for plotting error bars.