Is modifying structures using a string possible?

[injoi]

Is it possible to modify a structure so that its field names are defined by
inputs in a string?

example:

eString = {'dogs','cats','birds'};

for i = 1:length(eString)

animals.eString(i) = i;
end

*then the desired output would be..
animals.dogs = 1
animals.cats = 2
animals.birds = 3

I have been trying do this for a while with no luck. Any suggestions?



-----
Windows 7, intel Xeon(R) 3.3GHz

Thanks, Nohtal
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