conversion

15 Ansichten (letzte 30 Tage)
Baba
Baba am 16 Nov. 2011
i have a struct loaded and one of it's fields contains names such that struct(1).name contains "First" struct(2).name containis "Second" and so on
I would like to use these struct fields as a variable in my code. For example I'd like to set struct(1).name=content of some matrix so instead of saying X=[1;2;3] i'd like to say struct(1).name=[1,2,34] so First=[1,2,34] would be stored in the workspace. I just don't know how i need to convert struct(i).name to be able to use it
  1 Kommentar
Baba
Baba am 16 Nov. 2011
i think i was looking for varname = genvarname(struct(1).name)

Melden Sie sich an, um zu kommentieren.

Antworten (2)

Jan
Jan am 16 Nov. 2011
Creating variables dynamically is prone to errors, hard to debug and slows down Matlab. Therefore it is recommended to avoid this.
A more efficient approach is using dynamic fieldnames:
data.(struct(1).name) = [1, 2, 34];
data.(struct(2).name) = [1, 2, 34];
Then the new variables are encapsulated in the struct data.
  1 Kommentar
Jonathan
Jonathan am 16 Nov. 2011
I agree.

Melden Sie sich an, um zu kommentieren.


Jonathan
Jonathan am 16 Nov. 2011
Baba,
This will do what you described.
structVar(1).name = 'First';
structVar(2).name = 'Second';
makeVarFun = @(str, val) assignin('caller', genvarname(str), val);
for i = 1:numel(structVar)
varName = structVar(i).name;
makeVarFun(varName, i);
end

Kategorien

Mehr zu Structures finden Sie in Help Center und File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by