[R-sig-Geo] weird ncdf4 output 9.969210e+36

[Pascal Oettli]

Hi,

This is the number for missing value in most of NetCDF files.
http://www.unidata.ucar.edu/software/netcdf/docs/BestPractices.html#Missing%20Data%20Values

This means you missed to provide/utilize the missing value attribute
when you read your file.

Regards,
Pascal

On Tue, Oct 21, 2014 at 3:40 PM, Jianhua Huang <jh.eco.cas at gmail.com> wrote:
> Hi All:
>
>
>
> I am trying to create a 3 dimensional (200*200*8760) netCdf file using the
> ncdf4 package. Everything goes fine, except some unexpected outputs. Here is
> tail of the result in one grid cell. I cbind the original values and the
> output read from the nc file.
>
>
>
>         Original   ncdf4
>
> [8755,] 70.47247 7.047247e+01
>
> [8756,] 47.10336 4.710336e+01
>
> [8757,] 38.70509 3.870509e+01
>
> [8758,] 32.86281 3.286281e+01
>
> [8759,] 21.90854 9.969210e+36
>
> [8760,] 10.95427 9.969210e+36
>
>
>
> Most ncdf4 data matches with the original data, except the last two values.
> There are extremely large values: 9.969210e+36
>
>
>
> I have no idea where these huge values come from, and can't figure out where
> is wrong at all.
>
> Any one met the same problem before? Thanks for any suggestion, and I really
> appreciate any help.
>
>
>
> Thanks
>
>
>
> Jianhua
>
>
>
>
>
>
>         [[alternative HTML version deleted]]
>
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-- 
Pascal Oettli
Project Scientist
JAMSTEC
Yokohama, Japan