String compare in Struct (Matlab)

问题

I need search a large struct and find the index of all the components with the same name.

For example: If the name is 13hy I need an array [1,5] returned

 structure(1,1).name = '13hy'
 structure(2,1).name = '64hy'
 structure(3,1).name = '37hy'
 structure(4,1).name = '07hy'
 structure(5,1).name = '13hy'

I have tried:

 strcmp(structure.name,'13hy')
 ismember(structure.name,'13hy')
 strfind(structure.name,'13hy')

and I keep getting the error 'Too many input arguments.' Please help

回答1:

Use arrayfun to traverse the structure, using a strcmp-based anonymous function to test for the desired name:

find(arrayfun(@(n) strcmp(structure(n).name, '13hy'), 1:numel(structure)))

回答2:

Use []:
strcmp([structure.name],'13hy')

It chains the content and allows you to compre and use the struct very much like a usual variable.

Enjoy!

来源：https://stackoverflow.com/questions/24964753/string-compare-in-struct-matlab