[julia-users] Question on tuple size

[Jung Soo Park]

Hi,

I am generating two functions and the outcome of the first function will be 
use as input values of the second function.

Like Matlab's case of [x,y,z] =test_function(input), I used Julia's tuple 
function to generate [x,y,z] and it worked well.
  
   function test_function(input)
     x=rand(20,5);
     y=rand(30,50);
     z=rand(5,100);
     ALL=tuple(x,y,z);
     return ALL
   end

   I sliced the output of ALL with [[ ]] and save as xx,yy,zz.
  
     ALL= test_function(best)
     xx=ALL[[1]];
     yy=ALL[[2]];
     zz=ALL[[3]];
   
   But I found the size of original output (say x) and sliced (say xx) are 
not identical so I can not transfer the values into the second function.   
   size(x)
   (20,5)
   
    size(xx)
    `size` has no method matching size(::(Array{Float64,2},))

  while loading In[1], in expression starting on line 12

   
    Q) How can I convert the size of xx into size of x so that I can run my 
second function like following?
   
    function test_2(x,y,z)
    smile!!
    end
        

  Thank you for your time.
 
  Jase