/SDAS_TABLE                                               September, 1995

The procedures in this directory are useful for accessing the binary disk
tables used by STSDAS (Space Telescope Science Data Analysis System).   
The LaTeX file idl_stsdas.tex in the /text directory gives a detailed 
description of the IDL interface with STSDAS images and tables.   This file
is actually a copy of Chapter 10 of the Goddard High Resolution Spectrograph
(GHRS) manual available via anonymous FTP from 

     ftp://hrssun.gsfc.nasa.gov/pub/ghrsdaf/docs/swq-v2_1-sec10.ps

Several procedures in the /FITS directory such as SXADDPAR.PRO and SXPAR.PRO 
are required by the STSDAS table IDL procedures.

----------------------------------------------------------------------------
STSDAS (Binary) Table I/O   
____________
------------
TABLE_APPEND - Append a list of STSDAS tables to create a single table.
TABLE_CALC - Add a new table column from an expression using existng columns.
TABLE_DELETE - Delete specified rows from an STSDAS table
TABLE_EXT - Extract column(s) of data from an STSDAS table to IDL variable(s)
TABLE_HELP  - Describe an STSDAS table.
TABLE_LIST  - List the contents of an STSDAS table
TABLE_PRINT - Print a disk STSDAS table in tabular form
TABLE_SORT  - Order the contents of an STSDAS table by the specified column
TAB_ADDCOL  - Add a new column to a STSDAS table
TAB_COL - Extract column info from a table control block.  Called by TAB_READ
TAB_CREATE - Create an empty STSDAS table on disk
TAB_DEL  - Delete specified row(s) from an STSDAS table
TAB_EXPAND - Expand the size of an STSDAS table.  Called by TABLE_APPEND
TAB_FORTOSPP - Convert a FORTRAN print format to SPP. Called by TAB_MODCOL
TAB_MODCOL - Modify a column name, format or units in an STSDAS table.
TAB_NULL() - Locate null values in a STSDAS table.  Called by TAB_PUT
TAB_NULLROW - Place null values into a STSDAS table.  Called by TAB_PUT
TAB_PRINT - Print the contents of an STSDAS table in tabular form
TAB_PUT - Put new values into a column of an STSDAS table
TAB_READ - Read table control block and data array from a disk STSDAS table. 
TAB_SIZE - Return the size of a STSDAS table.  Called by TABLE_LIST
TAB_SORT - Sort a STSDAS table according to the specified column
TAB_SPPTOFOR - Convert SPP print format to FORTRAN.  Called by TAB_PRINT
TAB_TO_DB - Convert an STSDAS table to an IDL database
TAB_VAL() - Extract values from a single column of an STSDAS table
TAB_WRITE - Write a STSDAS table to a disk file