.TH MTBLSORT 1 "June 2010" "Montage 3.3" "Montage"
.SH NAME
mTblSort \- Sorts a table on numeric values

.SH SYNOPSIS
mTblSort [\-d] in.tbl colname out.tbl

.SH DESCRIPTION
Sorts a table on numeric values.

.SH OPTIONS
.TP
\-d
Turns on debugging

.SH ARGUMENTS
.TP
in.tbl
Path to input table
.TP
colname
Name of column to sort on (column must contain numeric values)
.TP
out.tbl
Path to output table

.SH RESULT
[struct stat="OK", count=\fInrows\fP]
.PP
where \fInrows\fP is the number of rows in the table.

.SH MESSAGES
.TP
OK
[struct stat="OK", count=\fInrows\fP]
.TP
ERROR
Cannot allocate memory for data
.TP
ERROR
Cannot open input file
.TP
ERROR
Cannot open output file
.TP
ERROR
Table file open failed for [\fIin.tbl\fP]
.TP
ERROR
Table file does not have fixed-length records
.TP
ERROR
Table does not contain column [\fIcolname\fP]

.SH EXAMPLES
.TP
$ mTblSort images.tbl ra ra_sorted.tbl
[struct stat="OK", count=5, nmatches=3]
.PP
ra_sorted.tbl is now sorted on the column "ra".

.SH BUGS
The drizzle algorithm has been implemented but has not been tested
in this release.
.PP
If a header template contains carriage returns (i.e., created/modified
on a Windows machine), the cfitsio library will be unable to read it
properly, resulting in the error: [struct stat="ERROR", status=207,
msg="illegal character in keyword"]
.PP
It is best for the background correction algorithms if the area
described in the header template completely encloses all of the input
images in their entirety. If parts of input images are "chopped off"
by the header template, the background correction will be affected. We
recommend you use an expanded header for the reprojection and
background modeling steps, returning to the originally desired header
size for the final coaddition. The default background matching assumes
that there are no non-linear background variations in the individual
images (and therefore in the overlap differences). If there is any
uncertainty in this regard, it is safer to turn on the "level only"
background matching (the "\-l" flag in mBgModel.

.SH COPYRIGHT
2001-2015 California Institute of Technology, Pasadena, California
.PP
If your research uses Montage, please include the following
acknowledgement: "This research made use of Montage. It is funded by
the National Science Foundation under Grant Number ACI-1440620, and
was previously funded by the National Aeronautics and Space
Administration's Earth Science Technology Office, Computation
Technologies Project, under Cooperative Agreement Number NCC5-626
between NASA and the California Institute of Technology."
.PP
The Montage distribution includes an adaptation of the MOPEX algorithm
developed at the Spitzer Science Center.