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SCALEF

The scale factor used to calculate the actual value of a scaled column. For a scaled column the actual value of each field is computed by applying a scale factor and zero point to the value stored in the table, according to the formula:


\begin{displaymath}
{\rm actual~value} =
( {\tt SCALEF} \times {\rm stored~value} ) + {\tt ZEROP}
\end{displaymath} (15)

An example of an STL catalogue containing scaled columns is available in file:

/star/share/cursa/scale.TXT



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CURSA Catalogue and Table Manipulation Applications
Starlink User Note 190
A.C. Davenhall
4th November 2001
E-mail:starlink@jiscmail.ac.uk

Copyright © 2001 Council for the Central Laboratory of the Research Councils