[gradsusr] Displaying Data

[PHILBERT LUHUNGA]

Dear Jennifer, thank you very much for your assistance. I am reading the link you directed. 
I have tried to declare variable differently and am getting another error
 
gancgrid error: nc_get_vara_double failed; NetCDF: Index exceeds dimension bound

dset ^tasmax_1971-2005.nc

title dummy descriptor file
options 365_day_calendar
undef 999999.0
dtype netcdf
xdef 194 linear -24.64  0.44 
ydef 201 linear -45.76  0.44
*zdef 12 linear 1000 1
zdef 1 levels 1 1
tdef 1800 linear 0Z01jan2041 1dy
vars 1

tasmax 0 9999 tasmax
endvars

--------------------------------------------
On Tue, 9/29/15, Jennifer Adams <jma at cola.iges.org> wrote:

 Subject: Re: [gradsusr] Displaying Data
 To: "PHILBERT LUHUNGA" <philuhunga at yahoo.com>, "GrADS Users Forum" <gradsusr at gradsusr.org>
 Date: Tuesday, September 29, 2015, 4:10 PM
 
 Your
 descriptor needs ‘dtype netcdf’ and a different variable
 declaration — the “99” needs a list of comma-delimited
 coordinate axes, perhaps like “z,y,x” but it will depend
 on the shape of the variables you’re describing. Please
 see http://iges.org/grads/gadoc/SDFdescriptorfile.html.—Jennifer
 On Sep 28, 2015, at 12:15
 PM, PHILBERT LUHUNGA <philuhunga at yahoo.com>
 wrote:
 Hi
 everyone, I am coming across with a problem which I cannot
 figure out how to resolve it.I am
 opening a netcdf file, with a descriptor  file. The file
 open but when I set gxout shaded, and display the variable,
 nothing happen but a blank figure appears. When I set gxout
 print and when I d variable I am getting strange
 values.02551e+23
 78311e+09 -4.651e+19
 -6.08148e-06 -7.84793e+17 0.000288823 -6.11569e+35
 5.
 11
 -3.51827e-11
 64293e-30 -1.16457e+08
 -2.98267e-35 -5.63985e+29 1.6211e+08 3.12801e-31
 -2
 e-13
 1.75172e-27
 03e-09
 -7.72053e-25 -8.10953e+21 -5.78092e-14 -6.50656e+32
 3.85024e-35 305
 .231599
 41691e+31 4.06909e-12 7.699e-30
 1.86735e-26 -4.92652e-05 -6.30345e+35 -4.3
 21
 8.38019e-30
 44686e-27 3.42916e-36
 -1.44624e+13 5.74785e+20 -6.14774e+20 4.80674e+18
 1.
 +18
 -3.20695e+27
 4793e-28
 -4.39624e-05 -1.00517e-12 1.32428e-15 6.12485e-22 63303.6
 -1.7084
 9.97363e-17
 60567e+22 -6.90464e-36
 -1.44687e-20 8.43893e-07 -6.6683e+13 -4.48022e-25
 -
 4e-23
 -4.63784e-21
 5905e+24
 3.04333e-38 1.96598e+24 1.20301e+32 -4.03105e+08 1.51837e+16
 -123
 
 could
 anyone help me to resolve this problems.
 my
 descriptor file is dset
 ^tasmax_1971-2005.nc
 
 title
 dummy descriptor file
 options
 365_day_calendar
 undef
 -9.99e33
 xdef 194
 linear -24.64  0.44 
 ydef 201
 linear -45.76  0.44
 *zdef 12
 linear 1000 1
 zdef 1
 levels 1 1
 tdef
 1800 linear 01jan2041 1dy
 vars
 1
 *hus 0
 99 hus
 tasmax 6
 99 tasmax
  AS EVER
  LUHUNGA
  
  --------------------
  Philbert Modest Luhunga
  University of Pretoria 
  Department of Geography,Geoinformatics and Meteorology
  Private Bag X20 Hatfield 0028 South Africa
  Tel +27 (0) 12 420 5164
  Fax +27 (0) 12 420 6385
  Mobile:+ 27826228060
  Email address: philuhunga at yahoo.com_______________________________________________
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 --Jennifer
 M. Adams
 Center for Ocean-Land-Atmosphere
 Studies (COLA)
 111 Research Hall, Mail Stop
 2B3
 George Mason University
 4400 University Drive
 Fairfax,
 VA 22030