annotate tests/pointset_test/lshP.m @ 497:9d8aee621afb api-inversion

More libtests fixups.

Include audiodb_close() calls everywhere (whoops).

Add the facility to run tests under valgrind.  Unfortunately the
error-exitcode flag doesn't actually cause an error exit if the only
thing wrong is memory leaks, but it will if there are actual memory
errors, which is a start.

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