accum.pro

NRAO GBTIDL
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SUMMARY: fields | routine DETAILS: routine

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File accum.pro

Last modification date:: Fri Nov 19 11:20:49 2004

accum

procedure accum[, weight], [/noweight]

Accumulate the data in !g.s[0] into the global accum buffer, !g.accumbuf. If this is the first item in, it will also be used as a template, stored in !g.accum_template. This combines the UniPOPS functionality of ACCUM and SUM. The SUM name is already in use in IDL.

Examples

average some data

   sclear
   get,index=1
   accum
   get,index=2
   accum
   ave

Uses

accumulate

Version

$Id: accum.pro,v 1.3 2004/11/19 16:20:49 bgarwood Exp $

Parameters

weight
in, optional
float The weight to use for this data. If this is not set, a weight of exposure/Tsys^2 will be used unless the noweight keyword is set.

Keywords

noweight
in, optional
boolean If this is set, then the weight is set to 1.0 and and weight keyword value is ignored. When the procedure knows this to be true, some multiplications can be skipped and it should run somewhat faster.

Produced by IDLdoc 1.5 on Wed Dec 8 13:08:13 2004

Parameters
weight in, optional float	The weight to use for this data. If this is not set, a weight of exposure/Tsys^2 will be used unless the noweight keyword is set.

Keywords
noweight in, optional boolean	If this is set, then the weight is set to 1.0 and and weight keyword value is ignored. When the procedure knows this to be true, some multiplications can be skipped and it should run somewhat faster.