[ncl-talk] Error with "time_axis_labels(cd_date, resT1, restick)"

Zilore Mumba zmumba at gmail.com
Wed Jul 10 15:06:35 MDT 2019


Thanks Barry, I did not realise that the contribute script I used was from
WRF.
However even with the right script I still get the same error. Perhaps you
could help me, look at the script and see where am doing it wrong,
especially where I use cd_calendar and date&time.
The script is below. I know it is cumbersome because you do not have my
data. But I will appreciate any help
;-----------------------------------------------------------------
;  Adapted from DKRZ - NCL Example:   NCL_xy_multiple_lines_axis.ncl
;-----------------------------------------------------------------

load "$NCARG_ROOT/lib/ncarg/nclscripts/contrib/cd_string.ncl"

begin

   filein =
"/home/zmumba/DATA/tasmax_AFR-44_CNRM-CERFACS-CNRM-CM5_historical_r1i1p1_CLMcom-CCLM4-8-17_v1_day_19960101-20001231.nc"
          ; file name

   f = addfile(filein,"r")                  ; open file

   tmax = f->tasmax(:,{-15},{25})           ; read tmax, all timesteps,
15S/25E

   t = f->time                              ; for use in x-axis label
   cd_date = cd_calendar(t, -2)

; open a workstation
   wks_type = "X11"                         ; graphics output type
   wks_type at wkWidth   =  1024               ; graphics output width in
pixels
   wks_type at wkHeight  =  1024               ; graphics output height in
pixels

   wks = gsn_open_wks(wks_type, "plot_xy_tie_series")

; resources for variable tmax y-axis
   res                      =  True
   res at xyLineThicknessF     =  3.0                        ; set line
thickness
   res at xyLineColor          =  "red"                      ; set line color
   res at xyDashPatterns       =  0                          ; solid line
   res at tmXBLabelFontHeightF = 0.010
   res at tiYAxisString        =  "Daily Max. 2m" + " " + tmax at standard_name
+"  "+ "at 15S/25E"                                             ; axis
string

   restick                    = True                      ; resource object
   restick at ttmFormat          = "%d %c"
   restick at ttmAxis            = "YL"
   restick at ttmMajorStride     = 20
   restick at ttmValues          = cd_date

   time_axis_labels(date&time,res,restick)

; create the plot
   plot = gsn_csm_xy(wks, t, tmax, res)

end

On Tue, Jul 9, 2019 at 7:33 PM Barry Lynn <barry.h.lynn at gmail.com> wrote:

> Try this one.
>
> load "$NCARG_ROOT/lib/ncarg/nclscripts/contrib/cd_string.ncl"
>
> On Tue, Jul 9, 2019 at 7:18 PM Dave Allured - NOAA Affiliate via ncl-talk <
> ncl-talk at ucar.edu> wrote:
>
>> That is not the correct load command for this function.  Time_axis_labels
>> is loaded separately.  Please go to the documentation page for
>> time_axis_labels, find the correct load command at the top of that page,
>> and add it to your script.
>>
>>
>> On Tue, Jul 9, 2019 at 12:27 AM Zilore Mumba <zmumba at gmail.com> wrote:
>>
>>> Thanks Dave for the hint. i did load the contributed package. I still
>>> get the same error. The package I loaded is
>>> "$NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRF_contributed.ncl"
>>> When I check this script I do not see anywhere where there is a function
>>> like "time_axis_labels".
>>> I will continue to probe and see where am going wrong
>>> Incidentally, example6 on
>>> https://www.ncl.ucar.edu/Document/Functions/User_contributed/time_axis_labels.shtml,
>>> gives
>>>
>>> *time_axis_labels*( data&time,  res, restick )
>>>
>>> I assumed there was a mistake  on data&time and corrected it to
>>> *time_axis_labels*( date&time,  res, restick )
>>>
>>> Thanks
>>>
>>> Zilore
>>>
>>>
>>> On Mon, Jul 8, 2019 at 10:00 PM Dave Allured - NOAA Affiliate <
>>> dave.allured at noaa.gov> wrote:
>>>
>>>> This is one of the contributed functions that is not loaded
>>>> automatically.  You are missing a "load" command.  NCL gave you a clue:
>>>>  "possibly an undefined procedure".  Please look at the top of the function
>>>> documentation page.
>>>>
>>>>
>>>> On Mon, Jul 8, 2019 at 9:14 AM Zilore Mumba via ncl-talk <
>>>> ncl-talk at ucar.edu> wrote:
>>>>
>>>>> I am trying to plot a time series. I have converted the dates in the
>>>>> file to the format YYYYMMDD with the function
>>>>>    t = f->time                            ; to get time in file
>>>>>    cd_date = cd_calendar(t, -2)   ; print(cd_date) prints correctly,
>>>>> eg 19960101,...
>>>>> Then to prepare the format for the x-axis label, I have:
>>>>>
>>>>>  resT1  = true
>>>>>
>>>>>  some resources
>>>>>  ..............
>>>>>
>>>>>  restick = True
>>>>>  restick at ttmFormat = "%d %c"
>>>>>  restick at ttmAxis = "YL"
>>>>>  restick at ttmMajorStride = 20
>>>>>  *time_axis_labels*( data&time,  res, restick )
>>>>>
>>>>> I am getting the error:
>>>>> fatal:syntax error: line 57 in file two-line-plot.ncl before or near \n
>>>>>    time_axis_labels( data&time,  resT1, restick )
>>>>> -------------------------------------------------^
>>>>>
>>>>> fatal:syntax error: possibly an undefined procedure
>>>>> fatal:syntax error: line 72 in file two-line-plot.ncl before or near \n
>>>>>    time_axis_labels(cd_date,resT1,restick)
>>>>> ------------------------------------------^
>>>>>
>>>>> fatal:syntax error: possibly an undefined procedure
>>>>> fatal:Syntax Error in block, block not executed
>>>>> fatal:error at line 76 in file two-line-plot.ncl
>>>>>
>>>>> Is the
>>>>>
>>>>> *time_axis_labels function still valid, or is there an alternative function?*
>>>>>
>>>>>
>>>>> *Help will be appreciated.*
>>>>>
>>>>> *Zilore*
>>>>>
>>>>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at ucar.edu
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>
>
>
> --
> Barry H. Lynn, Ph.D
> Senior Associate Scientist, 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
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> Int-IS: x972 2 930 9525
>
>
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