Is it possible to brush data on a plot and have it assigned to a variable immediatly after brushing instead of having to save it manually?

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Calabrese
Calabrese 2015-7-24
评论： Calabrese 2015-7-27
I would like to plot data, once plotted I would be directed to brush the data I want to use. Following the brush I would like to click the enter key and have code in matlab to save what I brushed without me having to do it manually.

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Cindy Solomon
Cindy Solomon 2015-7-27
编辑：Cindy Solomon 2015-7-27
Hi Calabrese,
There is no in-built functionality to do this in MATLAB, but there a few potential workarounds that you could look into:
1) This function on File Exchange has a lot of interesting functionality that other users have found helpful and recommended in similar use cases.
2) Adding a function to the callback that executes once data is brushed. (This callback is called ActionPostCallback.)
3) Adding some sort of event-listener to a property, such as the example here.
I hope this helps!
  2 个评论
Calabrese
Calabrese 2015-7-27
What is this function on File Exchange? Could you maybe provide an example to the ActionPostCallback and event-listner?
figure(1)
plot(Time,IAMHS,'y', Time,CMP1,'m', Time,CMP2,'c', Time,PDU_OP,'r',...
Time,ThreePThreeV,'g', Time,TenV_PREF,'b', Time,TenV_REF,'k')
title('all parameters')
axis([min(Time),max(Time),4.7,5.3])
pause
I am plotting 7 sets of data in a line plot
I use the brushing tool to select the chunks of data I would like to further evaluate. I am selecting an equal number of points for each of the 7 sets of data on the one plot.
Is there a way to reassign the variables IAMHS, CMP1, CMP2, PDU_OP, ThreePThreeV, TenV_PREF, and TenV_REF to the new selected sections with one of those options without having to go to tools->brushing->create new variable and then assign each variable 1 at a time?
Calabrese
Calabrese 2015-7-27
I have used this feature for an individual plot but my data comes back empty
figure(3)
x = plot(Time,CMP1,'m')
title('CMP1')
axis([min(Time),max(Time),4.7,5.3])
brush on
pause
hB = findobj(x,'-property','BrushData');
a = set(hB,'BrushData', 'YourNewValues')
b = get(hB,'BrushData');

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