annotate tests/pointset_test/lshP.m @ 578:dabbde72e331

Make the initialization of adbpd objects useful

Provide a single argument, naming the database, and actually use that
argument.  Also provide a destructor method which closes an open
database, and a useful create method (now with 100% fewer 2GB files).

function P2 = lshP(w,c,k)
if nargin<3, k=1;end
if nargin<2, c=1;end
if nargin<1, w=4;end

P2 = 1 - 2*normcdf(-w./c) - 2./(sqrt(2*pi)*(w./c)) .* ( 1-exp(-w.^2./(2*c.^2)) );
if(k~=1)
  P2 = P2.^k;
endif
endfunction