Function: framevectornorms

FRAMEVECTORNORMS  Norm of frame vectors 
  Usage: vnorms = framevectornorms(F,L)
         vnorms = framevectornorms(F,L,idx)

  Input parameters:
      F        : Frame definition
      L        : System length
      idx      : Index (or range) of vector(s)
  Output parameters:
      vnorms   : Vector norms

  FRAMEVECTORNORMS(F,L) returns 2-norms of vectors of frame F for
  system length L. The number of vectors in a frame (and the length of
  the output vector) can be obtained as frameclength(F,L).

  FRAMEVECTORNORMS(F,L,idx) returns 2-norms of vectors with indices 
  idx. Elements in idx must be in range 1:frameclength(F,L).

  Real-valued-input frames
  ------------------------

  By default, the function returns the norm of vectors used for
  synthesis. Frames like 'dgtreal', 'filterbankreal' do not contain the 
  ''redundant'' conjugate-symmetric vectors and their synthesis operator
  is not linear. Therefore the vectors used in synthesis do not have 
  an explicit form and their norm is unspecified. The vectors used for 
  analysis are well defined and can be obtained by passing additional
  flag 'ana'.

Url: http://ltfat.github.io/doc/frames/framevectornorms.html

See also: frsynmatrix.

Package: ltfat