How to give the output of previous function to the next function as input

How to give the output of previous function to the next function as input

[Amit]

Can you elaborate?

[SyedAli]

We have downloaded code from internet for face recognisation. we have attached the link http://www.mathworks.in/matlabcentral/fileexchange/17032-pca-based-face-recognition-system

In that code eigen facecore file doesn't run properly. It throws the error "not enough arguments" can you plz help us to run this code

[SyedAli]

Thanks for your answers we got the output.

Answer 1

[Azzi Abdelmalek]

For example

for k=1:10
  y=your_function(x)
  x=y
end