[ncl-talk] Defining directories

Fri Oct 28 06:22:23 MDT 2016

Karin:

Thank you.

Now I understand.

Barry

On Fri, Oct 28, 2016 at 12:10 PM, Karin Meier-Fleischer <
meier-fleischer at dkrz.de> wrote:

> Hi Barry,
>
> in line 55 the variable filename is defined as pointer to the opened file
> dirWRF(n)+"/"+"wrfout_d02_2016-01-23_00:00:00"
>
>    filename = addfiles(dirWRF(n)+"/"+"wrfout_d02_2016-01-23_00:00:00",
> "r")
>
> but it should be a string variable
>
>   filename = dirWRF(n)+"/"+"wrfout_d02_2016-01-23_00:00:00"
>
> and also the line 60 must be uncommented again to use the filename
> variable to open the file
>
>   a = addfile(filename,"r")
>
> Bye,
> Karin
>
> Am 28.10.16 um 09:25 schrieb Barry Lynn:
>
> Dear NCL-Talk:
>
> I added delete(filename) to the program, but now I have another obscure
> (for me) error.
>
> Thank you for your help.
>
> fatal:Could not coerce values for operation
> fatal:["Execute.c":8578]:Execute: Error occurred at or near line 56 in
> file define_dir.ncl
>
>
> On Wed, Oct 26, 2016 at 4:28 PM, Rick Brownrigg <brownrig at ucar.edu> wrote:
>
>> Hi Barry,
>>
>> Barry, in your case, the error is telling you exactly what the deal
>> is...left-hand-side and right-hand-side of the assignment are of
>> incompatible types.  Specifically, the call to addfiles() at line 54
>> returns a variable of type FileVariable. However, previously you had set
>> the type of the variable "filename" as a string, at around line 19. NCL is
>> strongly typed -- you don't have to declare the type of a variable in
>> advance, but once fixed (in both data-type and array shape), it sticks,
>> unless you do one of two things:  i) use the delete statement, ex:
>> delete(filename) in your case, or ii) use the reassignment operator ":=",
>> ex, filename := addfile(....)
>>
>> Mohammad, you seemingly had two questions, the second of which I never
>> really understood (about looping over the lat/lon values).  For the first
>> one, regarding multiple directories, it looks like there's a missing "/"
>> between the directory pathname and the wrf filenames.   Also, I don't
>> believe addfiles takes a a wildcard pathname, but rather an array of
>> filenames that may be relative or absolute pathnames.  Dennis's script
>> shows how to do that, but NOTE, there may be missing a "/" between the
>> parent directory and the "runXXX" directories.  You'll want to look
>> carefully at the constructed filenames.
>>
>> Hope that helps...
>> Rick
>>
>>
>>
>>
>> On Wed, Oct 26, 2016 at 1:23 AM, Muhammad Omer Mughal <
>> m.mughal1 at postgrad.curtin.edu.au> wrote:
>>
>>> Hi Bary
>>>
>>>
>>> I am in the same sort of problem.  I told you before when I try to run
>>> the attached script, it is unable to find wrfout_d04 files in all folders
>>>
>>> run6
>>>
>>> run7
>>>
>>> run 8 and
>>>
>>> run9
>>>
>>>
>>> I tried to be as clear as possible in NCL help but I may not
>>> have explained properly. If you understand my problem please reply me. I
>>> see the following errors when  I run the script.
>>>
>>>
>>> Variable: dirWRF
>>> Type: string
>>> Total Size: 32 bytes
>>>             4 values
>>> Number of Dimensions: 1
>>> Dimensions and sizes:    [4]
>>> Coordinates:
>>> (0)    /media/mughal/Seagate/ECMWF_WRF_RUNS2/run6
>>> (1)    /media/mughal/Seagate/ECMWF_WRF_RUNS2/run7
>>> (2)    /media/mughal/Seagate/ECMWF_WRF_RUNS2/run8
>>> (3)    /media/mughal/Seagate/ECMWF_WRF_RUNS2/run9
>>> fatal:["FileSupport.c":2859]:_NclVerifyFile: Requested file
>>> </media/mughal/Seagate/ECMWF_WRF_RUNS2/run6wrfout_d04*> or
>>> </media/mughal/Seagate/ECMWF_WRF_RUNS2/run6wrfout_d> does not exist
>>>
>>>
>>> Even when I change the script wrf_script_r4 to wrf_script_r5 recommended
>>> by Dennis I still am not able to solve the problem. I would appreciate if
>>> you would be able to help me out
>>>
>>>
>>>
>>> Muhammad Omer Mughal
>>> MSc BSc Mechanical Engineering
>>> PhD  Research Scholar
>>> Remote Sensing and Satellite Research Group
>>> Department of Imaging and Applied Physics
>>> Curtin University
>>>
>>> Curtin University
>>> Tel | +61 8 9266 7962
>>> Fax | +61 8 9266 2377
>>> Mobile | 0470 237 525
>>>
>>> Email | m.mughal1 at postgrad.curtin.edu.au <m.lynch at curtin.edu.au>
>>> Web | http://curtin.edu.au
>>>
>>> Curtin University is a trademark of Curtin University of Technology.
>>> CRICOS Provider Code 00301J (WA), 02637B (NSW)
>>>
>>>
>>> ------------------------------
>>> *From:* ncl-talk-bounces at ucar.edu <ncl-talk-bounces at ucar.edu> on behalf
>>> of Barry Lynn <barry.h.lynn at gmail.com>
>>> *Sent:* Wednesday, 26 October 2016 2:48:25 PM
>>> *To:* ncl-talk at ucar.edu
>>> *Subject:* [ncl-talk] Defining directories
>>>
>>> Hi:
>>>
>>> I'd like to define multiple directories.  I assume that I am almost
>>> "there.
>>>
>>> I am getting an error I don't understand.
>>>
>>> (0) dirWRF(n) = /data1/wrf/01_23_2016/GEFS/GEFS_00
>>> fatal:["NclVar.c":1390]:Assignment type mismatch, right hand side can't
>>> be coerced to type of left hand side
>>> fatal:["Execute.c":8578]:Execute: Error occurred at or near line 54 in
>>> file define_dir.ncl
>>>
>>> I know that this file exists.
>>>
>>> /data1/wrf/01_23_2016/GEFS/GEFS_00/wrfout_d02_2016-01-23_00:00:00
>>>
>>> But, I cannot execute the line (see error above):
>>>
>>> filename = addfiles(dirWRF(n)+"/"+"wrfout_d02_2016-01-23_00:00:00", "r")
>>>
>>> Thank you.
>>>
>>>
>>> --
>>> Barry H. Lynn, Ph.D
>>> Senior Lecturer,
>>> The Institute of the Earth Science,
>>> The Hebrew University of Jerusalem,
>>> Givat Ram, Jerusalem 91904, Israel
>>> Tel: 972 547 231 170
>>> Fax: (972)-25662581
>>>
>>> C.E.O, Weather It Is, LTD
>>> Weather and Climate Focus
>>> http://weather-it-is.com
>>> Jerusalem, Israel
>>> Local: 02 930 9525
>>> Cell: 054 7 231 170
>>> Int-IS: x972 2 930 9525
>>> US 914 432 3108 <914%20432%203108>
>>>
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>>>
>>
>
>
> --
> Barry H. Lynn, Ph.D
> Senior Lecturer,
> The Institute of the Earth Science,
> The Hebrew University of Jerusalem,
> Givat Ram, Jerusalem 91904, Israel
> Tel: 972 547 231 170
> Fax: (972)-25662581
>
> C.E.O, Weather It Is, LTD
> Weather and Climate Focus
> http://weather-it-is.com
> Jerusalem, Israel
> Local: 02 930 9525
> Cell: 054 7 231 170
> Int-IS: x972 2 930 9525
> US 914 432 3108
>
>
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>
>
> --
> Dipl. Geophys. Karin Meier-Fleischer
> Visualization, NCL
> Application Support
>
> Deutsches Klimarechenzentrum GmbH (DKRZ)
> Bundesstrasse 45a - D20146 Hamburg - Germany
>
> Phone:    +49 (0)40 460094 126
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>
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>
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>

-- 
Barry H. Lynn, Ph.D
Senior Lecturer,
The Institute of the Earth Science,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581

C.E.O, Weather It Is, LTD
Weather and Climate Focus
http://weather-it-is.com
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
US 914 432 3108
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