look for partial variable name match

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Amir 2012-6-27

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Hi,

Anyone can help me with partial variable name match? Here is the problem. I have a .mat file with multiple cases in a structure format: load file.mat variables: C1.variables C2.variables etc the name of variables have some prefixes: LCM_variable1 so it becomes: C1.LCM_variable1 I need to find variable1 from C1.LCM_variable1 in the file while the name of variables of interest are defined in a string list as inputs={'variabl1', 'variable2'} but the prefixes are not known.

Thanks

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Answer 1

Image Analyst 2012-6-27

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Use fieldnames() to list the fields (members) of a structure. Then you can examine them for certain names. You might use strfind() or ismember(). If you can't figure it out, even after using the help, then write back to us.

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Amir 2012-6-27

Thanks.

What function could I use to find a name match for a variable with pre-fix or suffix? I have a string arrays of names and need to search for a variable say variable1 that is embedded in something like FLC_C_variable1 ?

Image Analyst 2012-6-28

Try strfind() or strcmpi().

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Answer 2

Kye Taylor 2012-6-28

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编辑：Kye Taylor 2012-6-28

在 MATLAB Online 中打开

I assume that by "a string arrays of names" you mean a cell, call it C, whose contents are strings. For example, something like

C = {'a string', 'another string', 'FLC_C_variable1','FLS_C_variable2_plusMore', 'FLC_C_variable3Three'};

To find strings containing the substring 'variable1', another approach in addition to those given above would be to use the command

outCell = cellfun(@(s)regexp(s,'variable1'),C,'uniform',0)

which will return a cell, outCell, that is the same size as the original cell array C. Non-empty cells in outCell contain the index of the substring 'variable1' that was found in the corresponding cell in C. (If that is confusing, run the two commands above, then let me know if I can clarify.)

You can create an array like C from a structure's fieldnames using

C = fieldnames(someStructure);