Classified listing of routines

The package routines (other than PISAFIND) are:

PISAPLOT: plots the results of PISAFIND as a series of ellipses on a graphics device, it allows the ellipses to be overlaid onto displayed images.
PISAFIT: fits the PISA analytic stellar profile to a list of objects.
PISAGEN: generates analytic objects and places them in an NDF data array.
PISAPEAK: modifies the PISAFIND parameterisations so as to produce variables which are nearly intensity independent. The variables are further modified so that they have values in proportion to those of an equivalent stellar profile.
PISAKNN: performs non-parametric (distribution free) multivariate discriminant analysis on the results from PISAPEAK.
PISACUT: is a utility routine for separating any file into two given a threshold value for a particular variable.
PISAMATCH: is a utility program for matching indices between files. It included primarily to match classification indices against the PISAFIND parameterisations.
PISA2CAT: converts any of the PISA results files into catalogues that can be used by the CURSA[5] or CATPAC[8] application packages.
PISA2ARD: converts the results file from the PISAFIND routine into an ARD description of (possibly scaled) ellipses – one for each detected object.
PISAGREY: plots an NDF data array as a greyscale.