[ncl-install] 【ask for help】A problem about reading data

[Dennis Shea]

Apologies to ncl-install mail list.  I sent a response. He/SHe should have
sent the question to ncl-talk.

On Tue, Dec 6, 2016 at 5:23 PM, Dennis Shea <shea at ucar.edu> wrote:

> Likely, the file is in a different directory than the NCL script.
> By degault, NCL look in the current directory. This means the directory
> with the NCL sctipt
>
> ncl 1> data = addfile("precip.mon.mean.nc","r")    ; addfile looks in the
> current directory
> ncl 2> a = data->precip
> ncl 3> printVarSummary(a)
>
> Variable: a
> Type: float
> Total Size: 14598144 bytes
>             3649536 values
> Number of Dimensions: 3
> Dimensions and sizes:    [time | 352] x [lat | 72] x [lon | 144]
> Coordinates:
>             time: [101902..112585]
>             lat: [88.75..-88.75]
>             lon: [1.25..358.75]
> Number Of Attributes: 15
>   long_name :    Average Monthly Rate of Precipitation
>   valid_range :    (  0, 50 )
>   units :    mm/day
>   [SNIP]
>   _FillValue :    -9.96921e+36
> ===============================================
>
> You can be explicit
>
> diri = "./"                               ; directory containing the input
> file
>                                              ; diri =
> "/dir/where/file/is/located/"
> fili  = "precip.mon.mean.nc"
> pthi = diri+fil                         ; input path
>
> data = addfile( pthi, "r")
> a     = data->precip
>
>
>
> On Tue, Dec 6, 2016 at 4:02 PM, 475114511 <475114511 at qq.com> wrote:
>
>> Dear all,
>> I met a problem when I read a nc file,
>> The first pic is my script,I didn't find any problems.
>> Can anyone tell me how to fix this ?
>> Thanks so much!
>>
>>
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>>
>
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