Overwrite data in figure but keep axis labels, title, and legend

Hi,

I would like to overwrite only the data presented in a figure while keeping the labels and legends the same. I do not want to waste space and time on re-labeling the figures. 'hold on' holds the plot but does not overwrite the existing data and only adds to it.

Thank you for your help.

Answer 1

[Fangjun Jiang]

h=plot(rand(1,100));
title('random signal');
legend('blue signal');
set(h,'XData',1:10,'YData',1:10);

Answer 2

[Jack LeBien]

Hi, you can use

hold on 
cla
plot(newData)

cla (clear all) will remove the plotted data but not other formatting.

[Alexei M]

That doesn't solve the OP's problem. I just tried this (because I have the exact same question as OP), but when you subsequently use the plot command again, it removes the axis labels and etc. The goal here was to preserve the other formatting but "refreshing" the plotted data to something else.

[Jack LeBien]

I didn't have that issue. If I have a figure with certain labels and other formatting active, then set hold on, cla will then clear the plotted data, leaving labels etc. Then plot will fill the plot without clearing the formatting. Did you make sure to have hold on?

[David Walwark]

I did this technique helpful, thanks.

[Ruby Singh]

wow this is the most simple way to solve my similar problem!

thanks !!!!!!!!!!!!

[Dyl]

This should be the accepted answer.

[rzehumat]

+1 Dyl, I think as well that this one should be accepted.

[Keyur Panchal]

Thanks!!

using cla instead of clf works well

Answer 3

[MechtEngineer]

I don't see how the previous answer keeps the axis labels, title and legend when plotting some new data on the same axis.

The code that worked for the author (and for me) was:

title('Some Title','HandleVisibility','off');
ylabel('Some ylabel','HandleVisibility','off');
xlabel('Some xlabel','HandleVisibility','off');
set(gca,'NextPlot','replacechildren') ;

Any subsequent plots on this axes keeps the existing axes properties (including title, axis labels and legend), while replacing child objects (e.g. data)

[jinsong mao]

this method proves to be good, which can solve my problem, i want to keep the label in matlab gui while ploting in callback functions. thanks guys

[jinsong mao]

tried only set(gca,'NextPlot','replacechildren') ; works good too