GUI Question: How can I import a variable/vector/matrix into a GUI I created?

Hi! For example, I am creating my own GUI and I want to Import a variable or a vector from workspace or file system? How do I go about doing this? Thanks very much!

Answer 1

[Luffy]

If you want to access data that is in base workspace in your gui functions, use

v = evalin('base','name of variable u want to access'); % the variable's data is now stored in v. If u want to save data of ur gui work space to base, use

assignin('base','name of variable u want to save','value of variable'); Several ways are shared in the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F

[Iris]

I was able to pass my variables in between base workspace and gui and also call back functions through this. Thanks!

Answer 2

[Matt J]

This might be what you want

http://www.mathworks.com/matlabcentral/fileexchange/27106-putvar-uigetvar

Also, you can pass MATLAB variables to the GUI as input arguments when it is initially launched:

mygui(A,B,C,...)

The variables A,B,C,... will be passed to your gui's OpeningFcn, assuming you developed the gui using GUIDE, as varargin inputs.

Answer 3

[Image Analyst]

You can import a file from the file system using uigetfile() to get its filename, then use functions such as dlmread, csvread, textscan, importdata, etc. to read in the contents of the file.