xdfopen error with ddf file of XieArkin data

[Dave Allured]

Ji-Yun,

1.  Change your dimension environment to see different time steps.  This
is very basic Grads operation:

     sdfopen XieArkin-1979-2002.nc
     d prec2       <----- displays the first time step only

     set t 2
     d prec2       <----- displays the second time step only

     set t 1 50
     d prec2       <----- displays time steps 1-50 animated

     etc.

2.  Did you see the message from Todd Mitchell two hours ago?  Please DO
NOT use xdfopen or a DDF with this file.  They will only create more
confusion in this case!  Thank you!

--Dave A.
CDC/NOAA/CIRES

Ji-Yun SEO wrote:
> Greetings,
>
> Thank you for giving me some advice to solve ddf file problem.
> Sadly, i've still got a  problem
>
> 1. sdfopen XieArkin-1979-2002.nc
>    i could draw a picture of data but it's only for one time
>    it does not vary with time even though this data have 288 times.
>
>    *my grads version :
>      Grid Analysis and Display System (GrADS) Version 1.7Beta9
>      Config: v1.7Beta9 32-bit little-endian readline sdf/xdf hdf-sds lats
>              athena im/image-output
>
> 2. gradsnc : xdfopen prec.ddf
>     this error massage comes :
> =================================================
> Scanning Descriptor File:  prec.ddf
> XDFOpen Error:  Invalid variable record
>   --> The invalid description file record is:
>   --> prc2 prc2 1 99 precipitation
>   The data file was not opened.
> =================================================
> it seems to me that there's something wrong with prec.ddf file
> please check my ddf file
> i think grads can't distinguish a capital letter so PRC2 => prc2 are same
> for Grads ,aren't they?
> =================prec.ddf========================
> DSET ^XieArkin-1979-2002.nc
> *UNDEF 1E36
> UNDEF -999.f
> XDEF lon 144 Linear 0.0 2.5
> YDEF lat 73 Linear -90. 2.5
> TDEF time 288 Linear Jan1979 1mo
> VARS 1
> PRC2 => prc2 1 99 Precipitation
> ENDVARS
> =================================================
> i'm looking forward to your billiant advice!!!
> thanks again to people who give me some advice ^^