MATLAB: Iterating over multiple structures using structfun

Question

Suppose I have data organized in multilayer structures, where fields of each structure contain data of an individual animal, such as the example below:

data1.animal1.exp1 = 'someData';

data1.animal1.exp2 = 'someData';

data1.animal2.exp1 = 'someData';

…

and suppose I have several different data organized in the same way:

data2.animal1.exp1 = 'someOtherData';

data2.animal1.exp2 = 'someOtherData';

…

The individual structures (data1 / data2) contain complementary data. Now I want to be able to run functions on each element of the data using a combination of cellfun and structfun functions. The reason for this is that I want to keep the data hierarchy consistent.

I am able to do this:

NewData = structfun(@(x) structfun(@myFunction1, x, 'UniformOutput', false), data1, 'UniformOutput', false);

Then I want to run a different function in the same fashion, however that function takes two arguments:

NewData = structfun(@(x,y) structfun(@(x,y) myFunction2(x, y), x, y, 'UniformOutput', false), data1, data2, 'UniformOutput', false);

This does not work, because 'STRUCTFUN only iterates over the fields of one structure.' Is there a way how multiple arguments can be passed into a structfun?

I am able to do what I want in a loop, but I'm a bit obsessed with single line solutions because of convenience and readability of my code.

Thanks for your help.

Answer 1

fnames = fieldnames(data1);
temp = cellfun(@(FN) myFunction2(data1.(FN), data2.(FN)), fnames, 'uniform', 0);
result = cell2struct(temp, fnames, 1);   %might need ,2) instead of ,1)