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figure data point access in 2018a

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Lian
Lian on 30 Apr 2018
Commented: Lian on 30 Apr 2018
Sometimes I need to manually remove data points from an existing figure which are zero. It could be done fairly easily in previous releases. However I found that I can no longer do so in 2018a mac version. In particular, in figure property, the YData only shows 1xN array, and I cannot access the numerical values of those plotted points. Is this function removed from this release?
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Lian
Lian on 30 Apr 2018
I tested a very simple plot: figure, plot(sin(0:0.1:2),'ko-'); I understand that I can do that using command lines, but it is a very wired problem, as it is supposed to be very straightforward. Maybe it is due to the installation of some special toolboxes?

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Answers (1)

Ameer Hamza
Ameer Hamza on 30 Apr 2018
Edited: Ameer Hamza on 30 Apr 2018
You can set the properties programmatically using line handles. For example
p = plot(1:10); % p is plot handle and have property XData and YData.
p.XData = 1:10;
p.YData = (1:10).^2;
It will update the line according to new data.

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