Using a function as an input to another

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kor vec
kor vec 2018-10-22
评论： madhan ravi 2018-10-23
I have a function with two output arguments. I'm trying to pass it as an input to another function where I will need both outputs of the first function.
This is just a minimal example. The two functions:
function [X y] = M(d)
X = d;
[~,Y] = d;
end
function [A B] = N(a)
A = 2*a;
B = 3*a;
end
Basically, I want the following two lines to produce the same output
[a b] =N(3)
M(N(3))
  1 个评论
madhan ravi
madhan ravi 2018-10-22
add comments to your code so that its easier to understand what you are trying to do

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采纳的回答

Walter Roberson
Walter Roberson 2018-10-22
No, when a function has multiple outputs, the only way to capture them all is to use a real function and assign the results to variables. It is not possible in MATLAB to capture multiple outputs of a function inside an expression.

更多回答（1 个）

madhan ravi
madhan ravi 2018-10-22
编辑：madhan ravi 2018-10-22
function [X y] = M(d) %like this not sure what you want to do but a guess
X = d;
[~,Y] = d;
[A B] = @N
function [A B] = N(a)
A = 2*a;
B = 3*a;
end
end
  7 个评论
显示 5更早的评论
Walter Roberson
Walter Roberson 2018-10-23
[A B] = @N
would try to assign a handle to the function N to both A and B, but would fail because the operation of taking a handle to a function does not return multiple outputs.

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