[ncl-talk] Defining directories

[Rick Brownrigg]

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
>
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