How do you preallocate variables for coordinates?

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Jake
Jake 2013-5-10
I'm trying to use ginput in multiple iterations and save the coordinates into variables...for example.
for k = 1:3
[x(i),y(i) = ginput(4);
end
So I would click 4 times for the first iteration, and save those data points into the first variable. Then, I would click 4 times for the next two iterations and save those data points in two more variables

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回答（1 个）

Youssef Khmou
Youssef Khmou 2013-5-10
hi, you can use cells :
for k=1:3
A{k}=ginput(4);
end
you can later transform it to matrix : " cell2mat"

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