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Csaba
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How to find string structure elements?

Asked by Csaba
on 2 May 2017
Latest activity Answered by upol
on 10 Jan 2019
May be it is obvious, but I could not find out.
Let's say I have a structure 'people' with fields 'Surname' and 'Family_Name', like this:
people(1).Surname='Judit';
people(1).Family_Name='White';
people(2).Surname='Margaret';
people(2).Family_Name='Brown';
people(3).Surname='Judit';
people(3).Family_Name='Brown';
and so on, thousends.
How to find all Judits (or Browns)? I know I can make loops but is there any faster and shorter code?
Csaba

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2 Answers

Answer by Azzi Abdelmalek
on 2 May 2017
 Accepted Answer

people(1).Surname='Judit';
people(1).Family_Name='White';
people(2).Surname='Margaret';
people(2).Family_Name='Brown';
people(3).Surname='Judit';
people(3).Family_Name='Brown';
%--------------------------------
a={people.Surname}
b={people.Family_Name}
id={'Judit' 'Brown'}
idx1=ismember(a,id)
idx2=ismember(b,id)

Answer by upol
on 10 Jan 2019

Why this gives problem in C Coder. Error: Directly accessing field or property of nonscalar struct or object not supported for code generation.
s1=string({OPS_FLT(:).ACFT_ID})
s2=OPS_FLT(2).ACFT_ID
uuindex=find(strcmpi(s1,s2))
({OPS_FLT(:).ACFT_ID}) has already been defined as
OPS_FLT(1).ACFT_ID="apple"
OPS_FLT(2).ACFT_ID="orange"
I am trying to find orange from the array. It works in Matlab but not in C Coder

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