hold(handles.axes,'all')

for i=1:length(filedata)
    % more data processing code here
    plot(handles.axes,processed_datax,processed_datay),
    hold all
end

It works fine, as always I have used it. However, the data processing takes some time to compute so I decided to add a waitbar:

h = waitbar(0, 'computing...')
for i=1:length(filedata)
    waitbar(i/length(filedata),h)
    % more data processing code here
    plot(handles.axes,processed_datax,processed_datay),
    hold all
end
close (h)

In this case, the hold stops working. Apparently, the fact that waitbar interrupts the for clears the hold in some way…
How do you work around this?

Still makes no sense to me. Indexing shouldn’t help here. Did you try omitting the color and use “hold all” instead of “hold on”? Then add the legend.

–Loren

This makes not sense to me. I think you should contact technical support (link on right of blog page) with sample data and script plus error. Also information about your computer. I can easily plot 1749 points without even thinking about it. Indexing in shouldn’t make it more possible.

–Loren

legend('a','b')

to the end of my previous comment as my problem was that the legend was displaying the same color for both plots even though they plotted in different colors.

plot(X1,Y1,'color',[0 0 1])
hold on
plot(X2,Y2,'color',[0 0.5 0])
hold off
legend('a','b')

I had to do…

plot(X1(1:length(X1)),Y1(1:length(X1)),'color',[0 0 1])
hold on
plot(X2(1:length(X2)),Y2(1:length(X2)),'color',[0 0.5 0])
hold off

I am not sure how long your data has to be before you have to use this method, but mine had 1729 data points.

Pass the 2 line handles you want to place in the legend as the first inputs to the legend function. You can find more information on the legend reference page: http://www.mathworks.com/access/helpdesk/help/techdoc/ref/legend.html

–Loren

There is no function. You’d have to decide how to scale each of your curves yourself. Another alternative may be to plot them in a log y-axis. You can try this with semilogy, assuming all the values are non-negative.

–loren

I have different 1d vectors to be plotted as curves into a single Figure. The y values across the vectors is not normalized. Therefore, I’ve some vectors with pretty small y-values (10^-8), and others ranging from [0-1]. The highest value of a given vector is always 1.
Because of this, when I plot all the vectors together, some curves are almost displayed as being the x-axis (since the y-values are small). Is there any function that allows to normalize everything together, so as to be able to visualize the curves properly?

Best wishes