S

sample data sets
SAOimage
   displaying images with
   troubleshooting
saturated pixels
   image restoration
scaling data
   FITS files
scidata$
sclean task
script writing
   control structures
   using mkscript
section
   image specification syntax [1] [2]
set command [1] [2]
setup
   first time using IRAF
sgraph task
Shinko color printer
show command [1] [2]
siaper task
sigma-CLEAN
   image restoration algorithm
signal-to-noise ratio
   image restoration
sky background
   hsubtract and fill tasks
smaperloc task
snap
   printing a plot
snapshot
   OpenWindows utility
South Atlantic Anomaly
   hstpos task
specfit package
spectra
   flux vs. wavelength plot
   in synphot
spectrograph mode
   FOC
splot task
SPP
   described
standard header packet
startup file
   login.cl
statistics
   bivariate methods
   Kaplan-Meier estimator
   statistics package
   survival analysis
   two-sample tests
   with tables
STDERR
   redirecting
STDOUT
stop conditions
   isophote fitting
stplot package
strfits task
string functions
   CL
structure
   of GEIS file
   of STSDAS
STSDAS
   capabilities
   described
   distribution
   image format
   IRAF relationship [1] [2]
   overview
   package structure
   table format [1] [2]
stwfits task
subprocess, see
Subset Preprocessor
   SPP language
subsky task
sun2vax
survival analysis
   described
synphot package
   synthetic photometry
synthetic photometry
   documents describing
   synphot package
system problems
   troubleshooting