naming a structure
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clear all
FName = {'Data1','Data2','Data3'};
data1 = [rand(32,1),rand(32,1),rand(32,1)];
NewName = {'Location1'};
Location1 = struct('Data1',data1)
From this example how is it possible to adapt the script so that instead of typing 'Location1' as the name of the structure, can that be defined from 'NewName' i.e. defining the name of the structure from a pre-defined string?
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Kevin Holst
2012 年 2 月 22 日
You can use eval, but eval needs to be used with extreme care. You can really screw things up accidentally.
eval([NewName ' = struct(''Data1'',data1);'])
If somehow your string is a command like 'clear all' or worse then that command will be run, so use eval sparingly. If there's a possibility of that happening then you might want to put a check in there.
1 件のコメント
Jan
2012 年 2 月 23 日
Creating variables dynamically has two big disadvantages: 1. The debugging is very hard, because you cannot see in the code, where the value is defined. 2. Inserting a variable to the internal lookup-table of variables is slow, while variables, which are defined explicitely in the code are handled much faster, e.g. by the JIT-acceleration.
その他の回答 (1 件)
Walter Roberson
2012 年 2 月 22 日
4 件のコメント
Kevin Holst
2012 年 2 月 23 日
I like this approach, and will be suggesting it in the future. Much safer, clearer, and cleaner.
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