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How to combine workspaces using the workspace name

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Lauren
Lauren 2013-5-9
I have individual workspaces with names A1,A2,A3...A200. The workspaces all have two columns but varying number of rows. I have been trying:
for k=1:1:200
data=eval(sprintf('A%d',k);
a=[data];
end
However, this just gives me a workspace with the values from workspace A200. What is the most efficient way to combine all the workspaces into one with 2 columns?
  1 个评论
per isakson
per isakson 2013-5-9
编辑：per isakson 2013-5-9
In Matlab "workspace" is something different. Your, A1,A2,... are variables.
You overwrite the variable, a, 199 times.

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采纳的回答

Walter Roberson
Walter Roberson 2013-5-9

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Matt J
Matt J 2013-5-9
Similar to what Walter said, it was a mistake to create A1...A200. It would have been much more efficient to have these matrices as elements of a cell array A{1}...A{200} instead. Then you would simply do
a=vertcat(A{:});
To undo the damage, you can do
data=cell(1,200);
for k=1:1:200
data{k}=eval(sprintf('A%d',k);
end
a=vertcat(data{:});

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