MATLAB Answers


How to 'clean' data using moving average window filter

Asked by timetry2 on 13 Oct 2019
Latest activity Edited by timetry2 on 13 Oct 2019
How would I go about 'cleaning' the data by using a moving average window filter, using a window size of 5 and plotting this part in a new figure. I added the line of code y2 = movmean(y,5) but it is not giving me the results I need. Thank you in advance.


Then try a different window width. What do you need? Why do you say the moving mean window with a window width of 5 is no good (not "clean")? Are you saying that the mean within the window is not accurate - not the true mean due to a bug in movmean()? What exactly does "not giving me the results I need" mean?
I am trying to get two different plots in the same figure and the way I have the code I believe it is overlapping the figures. How would I get the second subplot that looks exactly the same with just the y2 = movmean(y,5) difference?

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1 Answer

Answer by Image Analyst
on 13 Oct 2019
 Accepted Answer

Try this:
subplot(1, 2, 1);
plot(y, 'LineWidth', 2);
title('y', 'FontSize', 16)
subplot(1, 2, 2);
plot(y2, 'LineWidth', 2);
title('y2', 'FontSize', 16)
grid on;


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