  The evaluation of the physical parameters or effects such as the luminosity
function (LF) or the photometric maximum (PM) for galaxies is routinely modeled
by their spectroscopic redshift. Here, we model LF and PM for galaxies by the
photometric redshift as given by the Spitzer Wide-Area Infrared Extragalactic
(SWIRE) catalog in the framework of a lognormal LF. In addition, we compare our
model with the Schechter LF for galaxies. The adopted cosmological framework is
that of the flat cosmology.
