Re: 2 variables to ASCII file

From: Dennis Shea <shea_at_nyahnyahspammersnyahnyah>
Date: Fri, 07 Dec 2007 12:01:51 -0700

It makes sense. Note the error message.

----
fatal:Number of dimensions in parameter (0) of (table_attach_rows) is
(3), (2) dimensions were expected
---
The variables you are passing are 3-dimensional
     [Time | 1] x [south_north_stag | 110] x [west_east | 139]
---
The documentation clearly states that only 2D arrays  are allowed.
	function table_attach_rows (
		t1      : [*][*],                 <==== 2D
		t2      : [*][*],                 <==== 2D
		opt [1] : integer   
	)
	return_val [*][*] 
    Arguments
/t1:  /A two-dimensional array of any type.
/t2: /A two-dimensional array of the same type as /t1/.
     The right dimension size [columns] must be identical to that of 
/t1/. //----
---
The following passes 2D arrays: 
     uv = table_attach_rows (u(0,:,:), v(0,:,:), 0)
Erik Noble wrote:
> Dear Dr. Shea and NCL world,
> I am getting this error now, which does not make sense. My code for
> uv = table_attach_rows (u,v, 0) is in the correct syntax, is it not?
>
> Copyright (C) 1995-2007 - All Rights Reserved
>  University Corporation for Atmospheric Research
>  NCAR Command Language Version 5.0.0
>  The use of this software is governed by a License Agreement.
>  See http://www.ncl.ucar.edu/ for more details.
>
>
> Variable: times
> Type: string
> Total Size: 4 bytes
>             1 values
> Number of Dimensions: 1
> Dimensions and sizes:	[1]
> Coordinates:
> Number Of Attributes: 2
>   description :	times in file
>   _FillValue :	missing
> (0)	2006-09-10_00:00:00
>
>
> Variable: v
> Type: float
> Total Size: 61160 bytes
>             15290 values
> Number of Dimensions: 3
> Dimensions and sizes:	[Time | 1] x [south_north_stag | 110] x [west_east | 139]
> Coordinates:
> Number Of Attributes: 5
>   FieldType :	104
>   MemoryOrder :	XYZ
>   units :	m s-1
>   description :	V
>   stagger :	V
> fatal:Number of dimensions in parameter (0) of (table_attach_rows) is
> (3), (2) dimensions were expected
> fatal:Execute: Error occurred at or near line 42 in file INPUT_ascii.ncl
>
> Erik_at_noble:/Volumes/Data_and_Models/ncl_scripts:
>
> CODE:::
>
>  ;   Example script to produce plots for a WRF real-data run,
> ;   with the ARW coordinate dynamics option.
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_csm.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/contributed.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/shea_util.ncl"
> load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
> ;load "WRFUserARW.ncl"
>
> begin
> ;
> ; The WRF ARW input file.
> ; This needs to have a ".nc" appended, so just do it.
> diri1 ="/Volumes/Data_and_Models/NAMA-SOP3/"
> ifile1 ="met_em.d01.2006-09-10_00:00:00.nc"
> title  = "UV-metGrid_R2-Ascii-"
> date = "09-10-00UT"
> a=addfile(diri1+ifile1,"r")
> ; What times and how many time steps are in the data set?
>   times  = wrf_user_list_times(a)  ; get times in the file
>   ntimes = dimsizes(times)         ; number of times in the file
>
> ; The specific pressure levels that we want the data interpolated to.
>   pressure_levels = (/ 850., 700., 500., 300./)   ; pressure levels to plot
>   nlevels         = dimsizes(pressure_levels)     ; number of pressure levels
>
>
>  ; First get the variables we will need
>
>      v  = a->VV(:,10,:,:)        ; grid point variable
>      u  = a->UU(:,10,:,:)
>  printVarSummary(v)
>
>   N    = 120    ; number of rows
>   M    = 140   ; number of columns
>   fWidth = 10    ; specify the format width
>   fDec   = 3     ; specify the number to the right of decimal point
>   fmtx   = M + "f" + fWidth + "." + fDec              ; fmtx="50f10.3"
>
>   opt  = True
>   opt_at_fout = title+date
> uv = table_attach_rows (u, v, 0)
> printVarSummary(uv)
>
> write_matrix (uv, fmtx, opt)
> delete(uv)
>
> end
>
>
>
> On Dec 7, 2007 9:50 AM, Dennis Shea <shea_at_ucar.edu> wrote:
>   
>> My example
>>        uv = table_attach_row (u_plane, v_plane, 0)
>> neglected to include the 's' at the end of "_row"
>>        uv = table_attach_rows (u_plane, v_plane, 0)
>>
>> The documentation URL is correct.
>>
>>
>> Erik Noble wrote:
>>     
>>> Hi. Thank you for this tip.
>>> unfortunately I am still getting an error that says NCL does not
>>> recognize "table_attach_row" command.
>>> Attached are both my code and my errors (log file) where the problem
>>> is on line 52. any suggestions
>>>
>>> On Nov 29, 2007 8:49 AM, Dennis Shea <shea_at_ucar.edu> wrote:
>>>
>>>       
>>>> Try
>>>>
>>>> https://www.ncl.ucar.edu/Document/Functions/Contributed/table_attach_rows.shtml
>>>>
>>>> uv = table_attach_row (u, v, 0)
>>>> printVarSummary(uv)
>>>>
>>>> write_matrix (uv, fmtx, opt)
>>>> delete(uv)
>>>>
>>>> ---
>>>> Good luck
>>>>
>>>>
>>>> Erik Noble wrote:
>>>>
>>>>         
>>>>> Dear NCL,
>>>>> My code below currently takes  both zonal and meridional wind from a model
>>>>> and intends to write the data out to a file using the matrix ASCII command.
>>>>>
>>>>> I have been sucessful writing one variable out as a matrix ascii file. How
>>>>> can I write both "sets of variables out to one file so that when I use a
>>>>> another program to plot the ascii data, the user "sees" both U and V in the
>>>>> file?
>>>>>
>>>>> Thank you,
>>>>> Erik
>>>>>
>>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/csm/gsn_code.ncl"
>>>>> load "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl"
>>>>> ;load "WRFUserARW.ncl"
>>>>>
>>>>> begin
>>>>> ;
>>>>> ; The WRF ARW input file.
>>>>> ; This needs to have a ".nc" appended, so just do it.
>>>>> diri1 ="/Volumes/Data_and_Models/Model-Output/Athena/"
>>>>> ifile1 ="WRF-SOP3_Athena_3_1_2.nc"
>>>>> title  = "U_V_700_r2_"
>>>>> a=addfile(diri1+ifile1,"r")
>>>>> ; What times and how many time steps are in the data set?
>>>>>   times  = wrf_user_list_times(a)  ; get times in the file
>>>>>   ntimes = dimsizes(times)         ; number of times in the file
>>>>>
>>>>> ; The specific pressure levels that we want the data interpolated to.
>>>>>   pressure_levels = (/ 850., 700., 500., 300./)   ; pressure levels to plot
>>>>>   nlevels         = dimsizes(pressure_levels)     ; number of pressure
>>>>> levels
>>>>>
>>>>>   ;do it = 0,ntimes-1             ; TIME LOOP
>>>>> do it =248, ntimes-1, 8             ; TIME LOOP
>>>>>
>>>>>  ; First get the variables we will need
>>>>>
>>>>>         p  = wrf_user_getvar(a, "pressure",it) ; pressure is our vertical
>>>>> coordinate
>>>>>      v  = wrf_user_getvar(a, "va",it)        ; grid point variable
>>>>>      u  = wrf_user_getvar(a, "ua",it)        ; grid point variable
>>>>> printVarSummary(v)
>>>>>  do level = 0,nlevels-1                 ; LOOP OVER LEVELS
>>>>>
>>>>>       pressure = pressure_levels(level)
>>>>>       v_plane  = wrf_user_intrp3d( v,p,"h",pressure,0.,False)
>>>>>       u_plane  = wrf_user_intrp3d( u,p,"h",pressure,0.,False)
>>>>>
>>>>> if ( pressure .eq. 700 ) then
>>>>>   N    = 109    ; number of rows
>>>>>   M    = 139   ; number of columns
>>>>>   fWidth = 10    ; specify the format width
>>>>>   fDec   = 3     ; specify the number to the right of decimal point
>>>>>   fmtx   = M + "f" + fWidth + "." + fDec              ; fmtx="50f10.3"
>>>>>
>>>>>   opt  = True
>>>>>   opt_at_fout = title+times(it)
>>>>>
>>>>>   write_matrix (v_plane, fmtx, opt)
>>>>>                 end if
>>>>>         end do
>>>>> ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
>>>>>
>>>>>   end do        ; END OF TIME LOOP
>>>>>
>>>>> end
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
>>>>> ncl-talk_at_ucar.edu
>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>
>>>>>           
>>>>         
>>
>>
>>     
-- 
======================================================
Dennis J. Shea                  tel: 303-497-1361    |
P.O. Box 3000                   fax: 303-497-1333    |
Climate Analysis Section                             |
Climate & Global Dynamics Div.                       |
National Center for Atmospheric Research             |
Boulder, CO  80307                                   |
USA                        email: shea 'at' ucar.edu |
======================================================
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Received on Fri Dec 07 2007 - 12:01:51 MST

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