casts input variables to float
casts input variables to float

bretthandrews/marvin,sdss/marvin,sdss/marvin,sdss/marvin,bretthandrews/marvin,bretthandrews/marvin,albireox/marvin,albireox/marvin,albireox/marvin,sdss/marvin,bretthandrews/marvin,albireox/marvin