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SUBSET-Take a subset of a data set.

Usage:

subset in out

Description:

Takes a rectangular subset of a data set. The given data set and the resulting subset may have up to seven axes. Axes that become degenerate by sub-setting - i.e. along which only one pixel is chosen - are deleted from the subset. Thus the subset may have smaller dimensionality than the original.

Parameters:
IN
IN = NDF (Read) The input file.
OUT
OUT = NDF (Read) The output file.

Examples:
subset in(1.5:2.5,10:12) out
   This takes the data from IN and writes the subset to OUT. The
   subset is specified as having 1st axis coordinates between 1.5
   and 2.5 and 2nd axis pixel numbers between 10 and 12.

Notes:
This routine recognises the Specdre Extension v. 0.7.


next up previous 79
Next: TABLE-List contents of a SPICA memory file
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Previous: SQRTERR-Generates an error array as Error = Square Root of (Data/Const)

FIGARO A general data reduction system
Starlink User Note 86
Keith Shortridge, Horst Meyerdierks,
Malcolm Currie, Martin Clayton, Jon Lockley,
Anne Charles, Clive Davenhall,
Mark Taylor, Tim Ash, Tim Wilkins, Dave Axon,
John Palmer, Anthony Holloway and
Vito Graffagnino
2004 February 17
E-mail:starlink@jiscmail.ac.uk

Copyright © 2013 Science and Technology Facilities Council