Passing structure field name in function

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I M
I M on 9 Jun 2016
Edited: per isakson on 9 Jun 2016
I have a function that accepts a structure and a field_identifier (character format) as inputs. The structure loaded has substructures in it, for which the field_identifier loaded in the function matches. The format is the following: structure(i).substructure.field_identifier
I have two checkpoints, ~isstruct and ~isfield for each of the inputs and it works fine. After that I initialize a for loop, defined as:
i=1;
for i=1:size(structure(i).substructure.field_identifier,1)
With this, I get the error that field_identifier is not a valid field. I understand the problem lies in the way I am passing the field identifier, but I have tried several things and cannot figure a way of passing field_identifiers as arguments for the for loop within this function. Can someone tell me what am I doing wrong?
Thanks in advance for the advice!

Accepted Answer

Stephen23
Stephen23 on 9 Jun 2016
Edited: Stephen23 on 9 Jun 2016
structure(i).substructure.(field_identifier)
Note that it is recommended to avoid using i and j for loop variable names, because these are names of the inbuilt imaginary unit.
  1 Comment
I M
I M on 9 Jun 2016
Thanks! I have implemented now a version with getfield, but this is more appropriate.

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