Re: null values value

["Craig E. Tull" <cetull@lbl.gov>]

Henrik;

At 01:40 PM 5/5/98 -0700, Henrik Nordberg wrote:
>if the event database contains null values, how are they represented?
>
>Background: sometimes there might not be enough statistics to calculate
>some of the event parameters. In the first dataset I received to work on
>(from Fuqiang Wang about a year ago) those data were represented as -999.
>for floats and there were no null integers. Is this still true?

I would suggest that you treat these number as normal numbers... Do not
tree -999.0 any different than -999.1

It is up to the physicsist to understand what -999.0 means. It might even
be something which should be searched for.

- Craig

-----------------------------------------------------
 Craig E. Tull, Ph.D.
 National Energy Research Scientific Computing Center
 E.O. Lawrence Berkeley National Laboratory
 EMail: cetull@lbl.gov       WWW: iago.lbl.gov/~tull
 Phone: (510)486-7253        FAX: (510)486-4004