converting a multiple input function to a vector input function
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Trevor
on 17 Jun 2015
Commented: Walter Roberson
on 18 Jun 2015
My question is similar to this one
I have a vector of symbolic expressions called "xdot_sym". Following the advice of the thread above I convert this function to a vector input function by the following
xdot_fun = matlabFunction(xdot_sym);
xdot_fun_vec = @(x) xdot_fun(x(1),x(2),x(3),x(4),x(5),x(6),x(7),x(8),x(9),x(10),x(11),x(12));
This works fine. However the length of my vector xdot_sym often changes. So I am looking for a way to define xdot_fun_vec for a variable number of input arguments (instead of just 12).
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Walter Roberson
on 18 Jun 2015
Read "Specify Input Arguments for Generated Function" in http://www.mathworks.com/help/symbolic/matlabfunction.html
So it would be like
matlabFunction(xdot_sym, {[p q s ...]})
where p q s ... is the list of variable names as they appear in xdot_sym; the first of them will be mapped to the first column of the single input, the second will be mapped to the second column of the single input, and so on.
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Walter Roberson
on 18 Jun 2015
Yes, 'Vars' would be needed,
matlabFunction(xdot_sym, 'Vars', {[p q s ...]})
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