Re: Problem with the function time_axis_labels

Dear Luis,

The error:

fatal:Argument type mismatch on argument (0) of (time_axis_labels) can not coerce

is telling you that the first input argument to time_axis_labels is the wrong type. Usually when I see this message, I go to the documentation for the function to see what that first argument is supposed to be:

http://www.ncl.ucar.edu/Document/Functions/User_contributed/time_axis_labels.shtml

"time_axis_labels" is expecting a numeric time value, but you are giving it a string value.

You need to convert these string values to numeric values before calling time_axis_labels, and you can do this with the wrf_times_c function. Please see example "time_labels_3.ncl" at:

http://www.ncl.ucar.edu/Applications/time_labels.shtml#ex3

--Mary
 
On Jun 2, 2014, at 10:01 AM, Luis Cesareo Cana Cascallar <luis.cana@ulpgc.es> wrote:

> Dear all,
> I’m plotting time series of several variables taken from a WRF output. I get the time information from the wrf file to use it as the input for the X axis. These lines resume how I do it:
>
> ===============================================
>
> times = wrf_user_getvar(a,"times",-1) ; get all times in the file
> print(times)
>
>
>
> resplot = True
> restick = True
> restick@ttmFormat = "%N/%D %H:%M"
>
> time_axis_labels (times,resplot,restick)
>
> t2_plot = gsn_csm_xy(wks,times,t2_point,resplot)
> ===============================================
>
> I printed the variable “times” and it shows the following:
>
> **********************************
> Variable: times
> Type: string
> Total Size: 240 bytes
> 30 values
> Number of Dimensions: 1
> Dimensions and sizes:
> [30]
> Coordinates:
> Number Of Attributes: 2
> _FillValue :
> missing
> description :
> times in file
> (0)
> 2007-04-10_06:00:00
> (1)
> 2007-04-10_06:30:00
> (2)
> 2007-04-10_07:00:00
> (3)
> 2007-04-10_07:30:00
> (4)
> 2007-04-10_08:00:00
> (5)
> 2007-04-10_08:30:00
> (6)
> 2007-04-10_09:00:00
> (7)
> 2007-04-10_09:30:00
> (8)
> 2007-04-10_10:00:00
> (9)
> 2007-04-10_10:30:00
> (10)
> 2007-04-10_11:00:00
> (11)
> 2007-04-10_11:30:00
> (12)
> 2007-04-10_12:00:00
> (13)
> 2007-04-10_12:30:00
> (14)
> 2007-04-10_13:00:00
> (15)
> 2007-04-10_13:30:00
> (16)
> 2007-04-10_14:00:00
> (17)
> 2007-04-10_14:30:00
> (18)
> 2007-04-10_15:00:00
> (19)
> 2007-04-10_15:30:00
> (20)
> 2007-04-10_16:00:00
> (21)
> 2007-04-10_16:30:00
> (22)
> 2007-04-10_17:00:00
> (23)
> 2007-04-10_17:30:00
> (24)
> 2007-04-10_18:00:00
> (25)
> 2007-04-10_18:30:00
> (26)
> 2007-04-10_19:00:00
> (27)
> 2007-04-10_19:30:00
> (28)
> 2007-04-10_20:00:00
> (29)
> 2007-04-10_20:30:00
> **********************************
>
> It looks OK for me, but when I run the script, I get the following error:
> fatal:Argument type mismatch on argument (0) of (time_axis_labels) can not coerce
> fatal:["Execute.c":8567]:Execute: Error occurred at or near line 118 in file Comparar_series_temporales.ncl
>
> It seems that there is something wrong when I call time_axis_labels. Could anyone tell me how to do it to get a nice formatted X axis with the hour:minute as the tick mark?
> Thanks in advance,
>
> Luis
> ULPGC
>
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Received on Tue Jun 3 09:12:08 2014