Storing the inputs of a function on a structure (or cell or array)

given a function such as:

function [z,w] = tempFun(x,y)

z = x+1;

w = y+1;

end

is it possible to store a given pair x,y as a structure (struct('x',1,'y',2), say, or as a cell or anything else...) and then unpack it and apply the function to the output?

(In python this could be done as: temFun( **{'x':1, 'y':2})

Answer 1

[madhan ravi]

d=struct('x',1,'y',2);
[z,w] = tempFun(d)

function [z,w] = tempFun(s)
    z = s.x+1;
    w = s.y+1;
end

[James Otterson]

Thanks for your reply, my problem is that I cannot change tempFun itself.

I guess, following your line of argument, my option is to create something like

function [z,w] = tempFun2(d)

tempFun(d.x, d.y)

end

[madhan ravi]

Why not

x=1;
y=2;
[z,w] = tempFun(x,y)

function [z,w] = tempFun(x,y)
    z = x+1;
    w = y+1;
end %??

[madhan ravi]

Or perhaps you want to take advantage of comma separated list?

d = {x,y};
[z,w] = tempFun(d{:})

[James Otterson]

That's exactly it, thanks a lot!

[James Otterson]

(the only slight upper hand the python code above has over this is that it will map the variables to their righ places, ie. you won't need to store then in the right order:

tempFun( **{'x':1,'y':10}) == tempFun(**('y':10,'x':1})

[madhan ravi]

Well, I'm a beginner in python (didn't get to this point still) , but this topic would be interesting to be debate about. But then do not underestimate the power of MATLAB ;-)