Creating a Matrix from Variables Window
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I create the variable G = []; in the Editor and then click on its name on Workspace and start typing in a 5 by 10 matrix there. Whenever I run the script, G becomes a 0-by-0 matrix from a 5-by-10 matrix. How can I tell MATLAB to change G to a 5-by-10 matrix and doesn’t change it to a 0-by-0 matrix?
回答（2 个）
Jan
2017-1-12
The command "G = []" sets G to the empty matrix. If you do not want to do this, omit this command. Instead of using the Variable editor, you can write the contents directly to the code:
G = [1,2,3,4,5; 6,5,4,3,2]
Rightia Rollmann
2017-1-12
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Steven Lord
2017-1-12
Then you need to find another way to import that data into MATLAB. Since you mention Microsoft Excel, see if xlsread can handle your file.
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2017-1-12
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