bad data rejection

["Sudheer Joseph" <sjo_cma@xxxxxxxxxxx>]

Dear Users,
                          I have a dataset which is having some -ve values 
in a netcdf file with depth and time axis . I would like to set all -ve 
values as bad data. Is there any way to do it ? can the set  var/bad =  
command be used to specify this? if so please let me know how to specify in 
this particular case  set  variable/bad = all -ve values
thanks
sudheer
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Dr. Sudheer Joseph
Indian National Centre for Ocean Information Services
Gajularamaram B.O., IDA Jeedeemetla S.O.
Via Pragathi Nagar, Kukatpally, Hyderabad
Pin:5000 55
Tel:+91-40-23044600(R)
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E-mail:sjo@rediffmail.com;
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sjo@incois.gov.in.
Web- http://oppamthadathil.tripod.com
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