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# SCOMBINE -- Spectrum combine parameters
input,s,a,,,,List of images to combine
output,s,a,,,,List of output images
headers,s,h,"",,,List of header files (optional)
bpmasks,s,h,"",,,List of bad pixel masks (optional)
rejmasks,s,h,"",,,List of rejection masks (optional)
nrejmasks,s,h,"",,,List of number rejected masks (optional)
expmasks,s,h,"",,,List of exposure masks (optional)
sigmas,s,h,"",,,List of sigma images (optional)
logfile,s,h,"STDOUT",,,"Log file
"
apertures,s,h,"",,,Apertures to combine
group,s,h,"apertures","all|images|apertures",,Grouping option
first,b,h,no,,,Use first spectrum for dispersion?
w1,r,h,INDEF,,,Starting wavelength of output spectra
w2,r,h,INDEF,,,Ending wavelength of output spectra
dw,r,h,INDEF,,,Wavelength increment of output spectra
nw,i,h,INDEF,,,Length of output spectra
log,b,h,no,,,"Logarithmic increments?
"
combine,s,h,"average","average|median|sum",,Type of combine operation
reject,s,h,"none","none|minmax|ccdclip|crreject|sigclip|avsigclip|pclip",,Type of rejection
outtype,s,h,"real","short|ushort|integer|long|real|double",,Output image pixel datatype
outlimits,s,h,"",,,Output limits (x1 x2 y1 y2 ...)
smaskformat,s,h,"bpmspectrum","bpmpixel|bpmspectrum",,Mask format
smasktype,s,h,"none","none|goodvalue|badvalue|goodbits|badbits",,Mask type
smaskvalue,r,h,0,,,Mask value
blank,r,h,0.,,,"Value if there are no pixels
"
scale,s,h,"none",,,Image scaling
zero,s,h,"none",,,Image zero point offset
weight,s,h,"none",,,Image weights
statsec,s,h,"",,,Image section for computing statistics
expname,s,h,"",,,"Image header exposure time keyword
"
lthreshold,r,h,INDEF,,,Lower threshold
hthreshold,r,h,INDEF,,,Upper threshold
nlow,i,h,1,0,,minmax: Number of low pixels to reject
nhigh,i,h,1,0,,minmax: Number of high pixels to reject
nkeep,i,h,1,,,Minimum to keep (pos) or maximum to reject (neg)
mclip,b,h,yes,,,Use median in sigma clipping algorithms?
lsigma,r,h,3.,0.,,Lower sigma clipping factor
hsigma,r,h,3.,0.,,Upper sigma clipping factor
rdnoise,s,h,"0.",,,ccdclip: CCD readout noise (electrons)
gain,s,h,"1.",,,ccdclip: CCD gain (electrons/DN)
snoise,s,h,"0.",,,ccdclip: Sensitivity noise (fraction)
sigscale,r,h,0.1,0.,,Tolerance for sigma clipping scaling corrections
pclip,r,h,-0.5,,,pclip: Percentile clipping parameter
grow,r,h,0.,0.,,"Radius for neighbor rejection
"
offsets,f,h,"physical","physical"
masktype,s,h,"none"
maskvalue,r,h,0
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