rvsao.contsum

contsum sets the parameters to be used to fit the continuum of spectra on which sumspec is being run. It is an IRAF "pset"; invocation causes eparam to be run on the file contsum.par. The following parameters may be modified:
c_interactive no
Fit continuum interactively (yes or no). If yes, a graph of the spectrum and the continuum fit is plotted to stdgraph, with rejected points flagged. The program waits until one of the following keys is typed:
q accept the fit and continue the main task,
? print options,
d delete pointnearest to cursor,
u undelete point nearest to cursor,
f refit and redraw the data.
c_sample "*"
Sample of points to use in fit. "*" = all.
c_function spline3
Continuum fitting function (spline3 or legendre or chebyshev or spline1)
naverage 1
Number of points in sample averaging
order 1
Order of fitting function
s_low_reject 2.
Spectrum continuum fit minimum acceptance limit in sigma of fit
s_high_reject 2.
Spectrum continuum fit maximum acceptance limit in sigma of fit
t_low_reject 2.
Template continuum fit minimum acceptance limit in sigma of fit
t_high_reject 2.
Template continuum fit maximum acceptance limit in sigma of fit
niterate 10
Number of rejection iterations
grow 1.
Rejection growing radius

Example

To set continuum fit parameters,
 
	rv> contsum

Last updated 20 October 2003