Comments on: Brush up on your data

By: Mike

Mike — Mon, 04 Oct 2010 12:50:16 +0000

@Nate,

No. The brush was designed as an interactive tool.

By: Nate

Nate — Fri, 01 Oct 2010 19:12:54 +0000

Is there a way to save brushed data as a new variable using a script/callback rather than the Tools menu?

By: junziyang

junziyang — Wed, 24 Jun 2009 04:05:31 +0000

MATLAB R2009a
Windows Vista 32bit Home Premium
MATLAB is minimized when the problem happens. After that you can not interact with it any more, such as edit code, or want to click a toolbar icon, even the maximize/minimize/close buttons. You have to close MATLAB from the task manager and restart it again.

By: Mike

Mike — Tue, 23 Jun 2009 13:45:20 +0000

junziyang,

What version of MATLAB are you using? On what platform? What do you mean by “loose focus”?

By: junziyang

junziyang — Tue, 23 Jun 2009 02:27:50 +0000

I like this tool very much. But I think there is a bug when “Create Variable” with the burshed data. When the burshed data number is large (e.g >2000), if the created variable is not cleared from the workspace before you use “Create Variable” to create a variable with the same name MATLAB will loss focus and I have to restart MATLAB to make it work again.

By: Mike

Mike — Mon, 08 Jun 2009 15:12:57 +0000

Spencer, hist has special handling that allows it to be brushed, as described in the documentation.

x = -2.9:0.1:2.9;
y = randn(10000,1);
figure(1)
hist(y,x)
linkdata(gcf,'on')

By: Spencer Alexander

Spencer Alexander — Fri, 05 Jun 2009 15:22:11 +0000

Great post Michael! I've loved all of the introductions to data-linking and data-brushing; I know the functionality is old news now... but it's new to me! I'm having an issue with the datalinking, and I wanted to pick your brain about it. I am attempting to link the data for multiple histograms in a figure without using the datalinking gui provided (I would like to have all of the datalinking performed in a matlab function / m-file). If any advice can be shared, it would be greatly appreciated. Datalinking and databrushing are incredible features, but my understanding of their inner workins is seriously lacking. To the best of my knowledge, histograms do not have a YDataSource property available (in the get/set property interface). I have occasionally succeeded in setting the 'DisplayName' property to the desired data string (such as 'plotdata(:,3)'), but this generally does not work. I am aware that for normal plots, the following will work:

handle = plot(plotdata(:,1),plotdata(:,2),...
        'XDataSource','plotdata(:,1)',...
        'YDataSource','plotdata(:,2)');

However similar attempts do not work for histograms. Thanks in advance for your help!