NAME

       mTranspose - Re-order axes of multi-dimensional data sets

SYNOPSIS

       mTranspose [-d level] [-s statusfile] incube.fits outcube.fits [outaxis1 outaxis2 [outaxi3 [outaxis4]]]

DESCRIPTION

       Montage (and a lot of other software) find it hard to work with WCS information that are not connected to
       the first two axes in a datacube.  Rather than over-complicate all  the  cube-related  software  we  have
       opted  for  having  this utility for transposing the data.  The default for the program is to examine the
       cube and rearrange the data so the first two axes represent sky longitude and latitude but the  user  can
       optionally  specify  the order of the rearrangement themselves (this also allows transforming reprojected
       cubes back into the original order for use by other programs).

OPTIONS

       -d level
              Turns on debugging to the specified level (1-3).

       -s statusfile
              mTranspose output and errors will be written to statusfile instead of stdout.

ARGUMENTS

       incube.fits
              Input FITS cube (3 or 4 dimensions).

       outcube.fits
              Output FITS cube.

       outaxis1 ... outaxis4
              The input axis numbers (1,2,3,4) in output order.

RESULT

       mTranspose rearranges the data value so the axes are in a different order.  As much as possible, the FITS
       header keywords are renamed accordingly but as it is not alway possible to identify which parameters have
       axis "subscripts" it may be necessary to manually modify the headera(e.g., using mGetHdr / mPutHdr) after
       the fact.

       $ mTranspose in.fits out.fits 3 2 1 4
              [struct stat="OK", mindata=2234.5, maxdata=10234.4]

MESSAGES

       OK     [struct stat = "OK", mindata=value, maxdata=value]

       ERROR  No status file name given

       ERROR  Cannot open status file: filename

       ERROR  No debug level given

       ERROR  Debug level string is invalid: 'string'

       ERROR  Debug level value cannot be negative

       ERROR  Invalid input file 'string'

       ERROR  Invalid output file 'string'

       ERROR  Axis ID 1 cannot be interpreted as an integer.

       ERROR  Axis ID 2 cannot be interpreted as an integer.

       ERROR  Axis ID 3 cannot be interpreted as an integer.

       ERROR  Axis ID 4 cannot be interpreted as an integer.

       ERROR  FITS library error

       ERROR  general error message

BUGS

       The drizzle algorithm has been implemented but has not been tested in this release.

       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"]

       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.

COPYRIGHT

       2001-2015 California Institute of Technology, Pasadena, California

       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."

       The Montage distribution includes an adaptation of the MOPEX algorithm developed at the  Spitzer  Science
       Center.