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[ferret_users] ERROR :: variable unknown or not in data set.



Hi Folks,

I am trying to calculate something and I am getting an unexpected error and i am unable to figure that out please help me with that,



yes? set mode metafile
yes? use t1.5s90e_mon(1).cdf
yes? use pottmp.2008.nc
yes? set memory/size=1000
 Cached data cleared from memory
yes? set reg/x=90W/y=2S/t=10-jan-2008:31-dec-2008/z=200
yes? let/units="Deg C" pottmp_c = pottmp - 272.15
yes? let dT=pottmp_c[d=1]-T_20[d=2,g=pottmp_c[d=1]]
yes? go multi_view 2, 1, .8, .1, 0, .2, .1, .1
yes? set view v11 ; ppl axlabp  1,-1
yes? plot pottmp_c[d=1],T_20[d=2]
 **ERROR: variable unknown or not in data set: POTTMP
yes? plot pottmp_c[d=1]
 **ERROR: variable unknown or not in data set: POTTMP
yes? plot t_20[d=2]
 **ERROR: variable unknown or not in data set: T_20[D=2]
yes? use t1.5s90e_mon(1).cdf
yes? sh d
     currently SET data sets:
    1> ./t1.5s90e_mon(1).cdf  (default)
 name     title                             I         J         K         L         M         N
 T_20     TEMPERATURE (C)                  1:1       1:1       1:12      1:14      ...       ...
 QT_5020  TEMPERATURE QUALITY              1:1       1:1       1:12      1:14      ...       ...
 
    2> ./pottmp.2008.nc
 name     title                             I         J         K         L         M         N
 DATE                                      ...       ...       ...       1:12      ...       ...
 TIMEPLOT                                  ...       ...       ...       1:12      ...       ...
 POTTMP   Potential temperature            1:360     1:418     1:40      1:12      ...       ...
 
yes?

I am getting this error only when i am trying the new script with the previous JNL files it is not giving me any error like this.

--
Regards,

Satyam Srivastava,
J.R.F,
K. Banerjee Centre of Ocean Sciences, 
University of Allahabad,
Allahabad.
+918756123444


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