= PDAF_generate_rndmat = 

This page documents the routine `PDAF_generate_rndmat` of PDAF.

The routine returns a random matrix with special properties. 

The interface is the following: 
{{{
  SUBROUTINE PDAF_generate_rndmat(dim, rndmat, mattype)
}}}
with the following arguments:
{{{
  INTEGER, INTENT(in) :: dim         ! Size of matrix rndmat
  REAL, INTENT(out)   :: rndmat(dim, dim) ! Matrix
  INTEGER, INTENT(in) :: mattype     ! Select type of random matrix:
                                     !   (1) orthonormal random matrix
                                     !   (2) orthonormal with eigenvector (1,...,1)^T
}}}

**Note:**
 * This matrix is e.g. used internally by PDAF_sampleens for second-order exact sampling.