These two,
out = myfun(A,B,optionC,dependent_C1)
out = myfun(A,B,optionC,dependent_C2)
are not possible simultaneously. If you want an argument to be non-positional, it must be entered as a Name-Value pair. The way to do approximately what you want is to support the following syntaxes, with the rule that dependent_C1 and dependent_C2 cannot both be empty,
out = myfun(A,B,optionC,dependent_C1)
out = myfun(A,B,optionC,dependent_C1,[])
out = myfun(A,B,optionC,[],dependent_C2)
out = myfun(A,B,optionC,dependent_C1,dependent_C2)
To handle the above, my approach would be as below. I don't think the arguments block can achieve something simpler.
function out = myfun(A,B,varargin)
arguments
A ...
B ...
end
if nargin>=3
varargin(end+1:5)={[]};
[optionC,dependent_C1,dependent_C2]=deal(varargin{3:5});
assert( ~isempty(dependent_C1) || ~isempty(dependent_C2), 'Bad argument combination')
end
end
