Hold on between different callbacks app designer

Question

Alejandro Fernández 2020-2-11

0
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https://ww2.mathworks.cn/matlabcentral/answers/504860-hold-on-between-different-callbacks-app-designer

回答： Alejandro Fernández 2020-2-11

Hello, everybody.

I have an application with four buttons and some UIAxes, one button is programmed so I can open data from .txt files and load a matrix with data.

The second button, draws those data in the axes that I have in the application

The doubt arises with the third and fourth button, I want that in first place, when pressing the third button it looks for the minimum of the points that I had loaded previously and that I draw it in the previous axes, but without it erases me so much the properties as the graphs that I had made. In addition, the fourth button I want it to look for the one after the minimum, that is to say, that it looks for the second lowest one the first time that I press it, the third lowest one etc and that it paints these new points on the graph that I had made with the second button.

Does anyone know how to draw (make a kind of hold on) having as base what had been done with the second button?

Thank you very much for everything.