The transpose operator reverses the order of the dimensions.  For a 2-dimensional array, this is equivalent to matrix transpose.

Synopsis

transpose(array)

Summary

Given an array containing dimensions d1, d2, ... , dn the result contains the dimensions in reverse order dn, ... , d2, d1.

Example

To transpose a 3×2 array:

1. Create the array and give each cell's attribute a unique value:

   AFL% create array M <val:double>[a=0:2; b=0:1];
   AFL% store(build(M, a*2+b), M); 

   
   The output is:
   

   {a,b} val
   {0,0} 0
   {0,1} 1
   {1,0} 2
   {1,1} 3
   {2,0} 4
   {2,1} 5

    

2. Transpose M:
   

   AFL% transpose(M);  

   
   The output is:
   

   {b,a} val
   {0,0} 0
   {0,1} 2
   {0,2} 4
   {1,0} 1
   {1,1} 3
   {1,2} 5

   Note that the array changed from being 3x2 to 2x3, and how the attribute order changes from (a,b) to (b,a).