[gradsusr] problem with a netcdf file

[Ismaila Diallo]

Dear Grads user's

I've a netcdf file, i use grads 1.9 so when i open the file by sdfopen that work and i do q file that work: example
 
sdfopen pr_1m_195001_200612_CRUTS3.nc
Scanning self-describing file:  pr_1m_195001_200612_CRUTS3.nc
SDF file pr_1m_195001_200612_CRUTS3.nc is open as file 1
LON set to 0 360
LAT set to -89.75 89.75
LEV set to 0 0
Time values set: 1950:1:1:9 1950:1:1:9
ga-> q file
File 1 : CRU TS 3.00 Precipitation
  Descriptor: pr_1m_195001_200612_CRUTS3.nc
  Binary: pr_1m_195001_200612_CRUTS3.nc
  Type = Gridded
  Xsize = 720  Ysize = 360  Zsize = 1  Tsize = 684
  Number of Variables = 1
    pr 0 -999 precipitation
ga-> d pr
SDF data variable has unsupported packed data type.
Data Request Error:  Error for variable 'pr'
  Error ocurred at column 1
DISPLAY error:  Invalid expression
  Expression = pr
ga->

so when i plot the variable i get the following error
d pr
SDF data variable has unsupported packed data type.
Data Request Error:  Error for variable 'pr'
  Error ocurred at column 1
DISPLAY error:  Invalid expression


  Expression = pr


So does someone have idea to resolve this kind of problem.

Thanks in advance.
Ismaila
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