Contents

• Users' Guide
  • Introduction
    • PROGRAM STRUCTURE
    • INSTALLING SPECX
      • Unbacking, compiling and linking
      • Customizing SPECX
      • Logical names
      • Documentation
      • Choice of graphics package
    • RUNNING SPECX
      • Setting up logical names
      • Invoking SPECX
      • Batch mode submission of SPECX jobs
      • Configuring the graphics terminal
      • Using a separate terminal as graphics display
    • Acknowledgements
  • The Command Language
    • TERMINAL INPUT
      • The command line
      • Invoking SPECX commands
      • Parameter input and defaults
      • Script files
      • Command symbols
      • Variables and expressions
      • Conditional execution - IF and DO commands
      • CTRL(C) Trapping
    • THE SCL COMMANDS.
      • DECLARE
      • SHOW-VARIABLES
      • Arithmetic or string assignment (=)
      • DO/ENDDO
      • IF / ELSEIF / ELSE / ENDIF
      • RETURN
      • PRINT
      • WRITE
      • READ
      • ASK
      • Command symbol assignment (:=)
      • SHOW-SYMBOLS
      • Comments -- * and !
  • SPECX Reduction Commands
    • OUTLINE OF FACILITIES
      • Command language
      • User supplied subroutines
      • Saving and restoring the environment
      • File system
      • Data export
      • Data import
      • Initialization
      • Moving spectra around
      • Scan arithmetic
      • Inspecting data
      • Plotting data
      • Frequency parameters
      • Quadrant/sector control
      • Filtering, smoothing etc
      • Editing data
      • Baseline fitting and removal
      • Maps
  
  
• Reference Manual
  • Command Dictionary
    • List of commands in alphabetical order
      • $
      • :=
      • =
      • @
      • ADD-SPECTRA
      • ADD-TO-MAP
      • ASK
      • AVERAGE-SPECTRA
      • BIN-SPECTRUM
      • CALCULATE-GAUSSIAN-MODEL
      • CHANGE-SIDEBAND
      • CHANNEL-MAPS
      • CLEAR-STACK
      • CLIP-SPECTRUM
      • CLOSE-FILE
      • CLOSE-FITS-FILE
      • CLOSE-MAP
      • CLOSE-PLOT
      • COMPRESS-FILE
      • CONCATENATE-SPECTRA
      • CONTOUR-MAP
      • CONVOLVE-SPECTRUM
      • DECLARE
      • DELETE-FROM-MAP
      • DELETE-LAST-PLOT
      • DELETE-SPECTRUM-FROM-FILE
      • DIFFERENTIATE-SPECTRUM
      • DIVIDE-SPECTRUM
      • DO
      • DRAW-PLOT-USING-CURSOR
      • DROP-CHANNELS
      • DUMP
      • EDIT-FILE-HEADER
      • ENTER-GAUSSIAN-MODEL
      • EXIT
      • EXTERNAL
      • EXTRACT-QUADRANT
      • FIND-CENTROID
      • FIND-INTEGRATED-INTENSITY
      • FIND-LINE-WIDTH
      • FIND-MAXIMUM
      • FIND-MOMENTS
      • FIND-SKEWNESS
      • FIND-SPECTRUM-STATISTICS
      • FIND-ZENITH-DISTANCE
      • FIT-COMPOSITE-BASELINE
      • FIT-GAUSSIAN-MODEL
      • FIT-POLYNOMIAL-BASELINE
      • FOLD-SPECTRUM
      • FORM-QUOTIENT-SPECTRUM
      • FOURIER-POWER-SPECTRUM
      • FOURIER-TRANSFORM
      • GET-SPECTRUM-FROM-MAP
      • GREYSCALE-MAP (also GRAYSCALE-MAP)
      • GRID-SPECTRA
      • HANN-SPECTRUM
      • HELP
      • INDEX-FILE
      • INDEX-GSD-FILES
      • INITIALIZE-PARAMETERS
      • INTERPOLATE-MAP
      • INVERT-SPECTRUM
      • LIST-MAP
      • LIST-OPEN-FILES
      • LIST-SPECTRUM
      • MERGE-QUADRANTS
      • MULTIPLY-SPECTRUM
      • NEW-PLOT
      • OFFSET-SPECTRUM
      • OPEN-FILE
      • OPEN-FITS-FILE
      • OPEN-MAP-FILE
      • OVERLAY-SPECTRUM
      • PAUSE
      • PLOT-LINE-PARAMETERS
      • POP-STACK-DOWN
      • PRINT
      • PRINT-SPECTRUM-HEADER
      • PUSH-STACK-UP
      • READ
      • READ-FITS-SPECTRUM
      • READ-GSD-DATA
      • READ-GSD-MAP
      • READ-SPECTRUM
      • RECALL-SPECTRUM
      • RECOVER-FILE
      • REGRID-SPECTRUM
      • REMOVE-LINEAR-BASELINE
      • REMOVE-SPIKES
      • RESTART
      • REWRITE-SPECTRUM
      • ROLL-STACK
      • ROTATE-MAP
      • SEE-PLOT
      • SET-CONTOUR-LEVELS
      • SET-DUMP
      • SET-ERROR-RETURN
      • SET-FILE-ACCESS
      • SET-GREYSCALE (also SET-GRAYSCALE)
      • SET-GSD-FILENAME
      • SET-HARDCOPY-DEVICE
      • SET-INTERACTIVE
      • SET-JOURNAL
      • SET-LINE-REST-FREQ
      • SET-LIST-FILE
      • SET-MAP-ACCEPT
      • SET-MAP-PARAMETERS
      • SET-MAP-SCALES
      • SET-MAP-SIZE
      • SET-PLOT-DEVICE
      • SET-PLOT-PARAMETERS
      • SET-PLOT-SCALES
      • SET-PLOT-SIZE
      • SET-QUADRANT-DISPLAY
      • SET-SITE-PARAMETERS
      • SET-STACK
      • SET-TERMINAL-DEVICE
      • SET-VELOCITY-FRAME
      • SET-X-SCALE
      • SHIFT-SPECTRUM
      • SHOW-COMMANDS
      • SHOW-GAUSSIAN-MODEL
      • SHOW-NEWS
      • SHOW-STACK
      • SHOW-STORE-REGISTERS
      • SHOW-SYMBOLS
      • SHOW-VARIABLES
      • SHOW-X-SCALE
      • SLIDE-QUADRANT
      • SMOOTH-SPECTRUM
      • STORE-SPECTRUM
      • SUBTRACT-SPECTRUM
      • TRUNCATE-SPECTRUM
      • WRITE
      • WRITE-ASCII-MAP
      • WRITE-ASCII-SPECTRUM
      • WRITE-GILDAS-IMAGE
      • WRITE-FITS-MAP
      • WRITE-FITS-SPECTRUM
      • WRITE-SPECTRUM
      • XY-INTERCHANGE
  
  
• Appendices
  • Quick command reference
    • Command language
    • File system
    • Moving spectra around
    • Data export
    • Data import
    • Quadrant/sector control
    • Frequency parameters
    • Inspecting data
    • Plotting data
    • Baseline fitting and removal
    • Filtering, smoothing etc
    • Editing data
    • Scan arithmetic
    • Mapping
  • Error messages
  • Predeclared variables
    • Spectrum header and data
    • Logicals
    • Flags
    • Errors
    • Counting variables
  • Example command files
    • Remove a spectrum from an average
    • Numerical problem solving
    • Read data from GSD files to SPECX files
    • Make a MONGO-plottable listing
    • Selecting scans by source name
    • Mapping while retaining $T_{sys}$ and integration time.
  • Writing FITS data with SPECX
    • 1-D FITS header specification
    • 2-D FITS header specification
  • Getting non-FITS data into and out of SPECX
    • SPECX data-file structure
    • Reading SPECX data-files
    • Reading ``foreign" data-files into SPECX
    • STACKCOMM.INC
    • Notes on individual header parameters:
  • Creating a private version
  • Interactive Graphics menu items
    • 1D interactive graphics
    • 2D interactive graphics
  
  
• About this document ...