[gradsusr] Error opening .txt file in a grads script
Keren Rosado - NOAA Affiliate
keren.rosado at noaa.gov
Tue Dec 1 11:17:16 EST 2015
Hi Jim,
Removing the space in between the commands seems to resolve the problem.
Now I am experiencing the following error:
.
.
.
.
Invalid QUERY argument: w2xy-2.461
DRAW error: Invalid operand
Invalid QUERY argument: w2xy-2.335
DRAW error: Invalid operand
Invalid QUERY argument: w2xy-62.923
DRAW error: Invalid operand
Invalid QUERY argument: w2xy-62.799
DRAW error: Invalid operand
Invalid QUERY argument: w2xy-62.864
DRAW error: Invalid operand
Invalid QUERY argument: w2xy-60.155
DRAW error: Invalid operand
.
.
.
I also display a variable right after open the .ctl and it worked well.
Thanks,
Keren
----
Keren Rosado
PhD Candidate/Howard University/NOAA EPP GRTSP Fellow
Intern/NOAA/NWS/NCEP/EMC
5830 University Research CT
Cubicle 2795
College Park, MD 20740
Tel: (301)-683-3816 <%28301%29-683-3763>
Cel: *(407)-621-1676 *
Email: Keren.Rosado at noaa.gov <Bin.Liu at noaa.gov>
On Mon, Nov 30, 2015 at 2:50 PM, James T. Potemra <jimp at hawaii.edu> wrote:
> Hi Keren,
>
> Another possibility is that you haven't displayed a variable yet, thus you
> don't have plotting dimensions defined. If you open "dummy.ctl" and then
> don't display anything, I think your "q w2xy" line will return "No scaling
> environment", then this will cause "xloc" and "yloc" to be improperly
> defined. Try display something first from your file "dummy.ctl".
>
> Also, it helps to use the "say" function to display these variables within
> your script to help diagnose the problem. For example, adding say xloc',
> 'yloc will print these values to the screen.
>
> Jim
>
>
> On 11/30/15 9:39 AM, Jeff Duda wrote:
>
> Keren,
> You have a lot of extra spaces floating around in your commands. As far as
> I know, when you're inserting script variables into a command in a grads
> script, you need to be very explicit with the formatting of the command. In
> other words, the spaces around your 'lat', 'lon', 'xloc', and 'yloc' may be
> causing the syntax error. I recommend removing those spaces and trying
> again. For example, change
>
> "draw mark "flag " "xloc " "yloc " 0.1"
>
> into
>
> "draw mark "flag" "xloc" "yloc" 0.1"
>
> Jeff
>
> On Mon, Nov 30, 2015 at 1:30 PM, Keren Rosado - NOAA Affiliate <
> <keren.rosado at noaa.gov>keren.rosado at noaa.gov> wrote:
>
>> Thanks Jeff,
>>
>> I already used the q w2xy and I don't see any error.
>>
>>
>> Here is the rest of the script
>>
>> file ="lightning_from00z29April.004.txt"
>> colors="1 2 3 4 5 6 7 8 9 10 11 12 13"
>> ccount=0
>>
>> rc=1
>> while (rc != 2)
>> data=read(file)
>> rc=sublin(data,1)
>> if (rc != 2)
>> line=sublin(data,2)
>> chk=substr(line,1,10)
>> if (chk != "----------")
>>
>> lat=subwrd(line,1)
>> lon=subwrd(line,2)
>> flag=subwrd(line,3)
>> color=subwrd(line,4)
>>
>>
>> "q w2xy "lon " " lat
>> xloc=subwrd(result,3)
>> yloc=subwrd(result,6)
>> name=subwrd(ccount,1)
>>
>> "set line "color" 1 5"
>> "set lat -20 20"
>> "set lon -40 25"
>> "draw mark "flag " "xloc " "yloc " 0.1"
>> * "draw mark 1 " xloc " "yloc " 0.06"
>> else
>> ccount=ccount+1
>> endif
>> endif
>> endwhile
>>
>>
>> 'set string 1 tc 1'
>> 'set strsiz .30'
>>
>>
>> ----
>> Keren Rosado
>> PhD Candidate/Howard University/NOAA EPP GRTSP Fellow
>> Intern/NOAA/NWS/NCEP/EMC
>> 5830 University Research CT
>> Cubicle 2795
>> College Park, MD 20740
>> Tel: (301)-683-3816 <%28301%29-683-3763>
>> Cel: *(407)-621-1676 <%28407%29-621-1676> *
>> Email: Keren.Rosado at noaa.gov
>>
>> On Mon, Nov 30, 2015 at 2:06 PM, Jeff Duda <jeffduda319 at gmail.com> wrote:
>>
>>> Keren,
>>>
>>> The error tells you what the problem is. You must have a "draw mark"
>>> command somewhere in your script that has a syntax error in it. You can use
>>> the grads documentation index to determine values of the various arguments
>>> to that function. I suspect you have an error in your x and y arguments in
>>> the function call. The x and y arguments need to be in real page units, not
>>> world coordinates. You'll need to use the 'query (position)' functions to
>>> translate between world coordinates, grid coordinates, and page
>>> coordinates. A commonly used one is 'q w2xy', which would convert world
>>> coordinates to real page coordinates.
>>>
>>> Jeff Duda
>>>
>>> On Mon, Nov 30, 2015 at 12:51 PM, Keren Rosado - NOAA Affiliate <
>>> keren.rosado at noaa.gov> wrote:
>>>
>>>> The text file is big but from what I can see is all numbers.
>>>>
>>>> 11.228 -73.969 1
>>>> 13.983 5.299 1
>>>> 13.790 -14.934 1
>>>> 22.645 -51.073 1
>>>> 11.254 -73.973 1
>>>> 6.508 -61.990 1
>>>> 11.405 4.011 1
>>>> 29.012 -59.311 1
>>>> 11.262 -74.027 1
>>>> 10.631 -68.972 1
>>>> 11.270 -73.941 1
>>>> 11.341 -73.955 1
>>>> 11.295 -73.604 1
>>>> 11.269 -73.595 1
>>>> 11.231 -73.537 1
>>>> 11.254 -73.611 1
>>>>
>>>>
>>>> When I type "run namescript.gs" I get the following error:
>>>>
>>>> DRAW error: Syntax is DRAW MARK marktype x y size
>>>> DRAW error: Syntax is DRAW MARK marktype x y size
>>>> DRAW error: Syntax is DRAW MARK marktype x y size
>>>> DRAW error: Syntax is DRAW MARK marktype x y size
>>>> DRAW error: Syntax is DRAW MARK marktype x y size
>>>> DRAW error: Syntax is DRAW MARK marktype x y size
>>>>
>>>> But when I run the script line by line the first error I get is the one
>>>> I send in the first email.
>>>>
>>>>
>>>> Thanks
>>>>
>>>>
>>>> ----
>>>> Keren Rosado
>>>> PhD Candidate/Howard University/NOAA EPP GRTSP Fellow
>>>> Intern/NOAA/NWS/NCEP/EMC
>>>> 5830 University Research CT
>>>> Cubicle 2795
>>>> College Park, MD 20740
>>>> Tel: (301)-683-3816 <%28301%29-683-3763>
>>>> Cel: *(407)-621-1676 <%28407%29-621-1676> *
>>>> Email: Keren.Rosado at noaa.gov
>>>>
>>>> On Mon, Nov 30, 2015 at 1:16 PM, Jeff Duda < <jeffduda319 at gmail.com>
>>>> jeffduda319 at gmail.com> wrote:
>>>>
>>>>> The snippet of script code you included isn't consistent with the
>>>>> output you included. I can't see from what you included what would be the
>>>>> cause of the error. Do you have non-alphanumeric characters in your text
>>>>> file? Otherwise I suspect you have a syntax error in your script somewhere
>>>>> else.
>>>>>
>>>>> Jeff Duda
>>>>>
>>>>> On Mon, Nov 30, 2015 at 10:36 AM, Keren Rosado - NOAA Affiliate <
>>>>> <keren.rosado at noaa.gov>keren.rosado at noaa.gov> wrote:
>>>>>
>>>>>> Hello,
>>>>>>
>>>>>> I am trying to open a .txt file in a .gs grads script without luck.
>>>>>> Grads version 2.0.1
>>>>>>
>>>>>>
>>>>>> This is what I have
>>>>>>
>>>>>> 'open dummy.ctl'
>>>>>> file = 'A20100826a.txt'
>>>>>> colors="1 2 3 4 5 6 7 8 9 10 11 12 13"
>>>>>> ccount=0
>>>>>>
>>>>>> rc=1
>>>>>> while (rc != 2)
>>>>>> data=read(file)
>>>>>> rc=sublin(data,1)
>>>>>> if (rc != 2)
>>>>>> line=sublin(data,2)
>>>>>> chk=substr(line,1,10)
>>>>>> if (chk != "----------")
>>>>>> .
>>>>>> .
>>>>>> .
>>>>>> .
>>>>>> The code keeps going but the error is at the "file" line.
>>>>>>
>>>>>> Here is the error
>>>>>> file = 'A20100826a.txt'
>>>>>> Syntax Error: Expected operand or '('
>>>>>> Error ocurred at column 1
>>>>>> DEFINE error: Invalid expression.
>>>>>>
>>>>>> Thanks!
>>>>>>
>>>>>>
>>>>>>
>>>>>> ----
>>>>>> Keren Rosado
>>>>>> PhD Candidate/Howard University/NOAA EPP GRTSP Fellow
>>>>>> Intern/NOAA/NWS/NCEP/EMC
>>>>>> 5830 University Research CT
>>>>>> Cubicle 2795
>>>>>> College Park, MD 20740
>>>>>> Tel: (301)-683-3816 <%28301%29-683-3763>
>>>>>> Cel: *(407)-621-1676 <%28407%29-621-1676> *
>>>>>> Email: <Keren.Rosado at noaa.gov>Keren.Rosado at noaa.gov
>>>>>>
>>>>>> _______________________________________________
>>>>>> gradsusr mailing list
>>>>>> gradsusr at gradsusr.org
>>>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Jeff Duda
>>>>> Graduate research assistant
>>>>> University of Oklahoma School of Meteorology
>>>>> Center for Analysis and Prediction of Storms
>>>>>
>>>>> _______________________________________________
>>>>> gradsusr mailing list
>>>>> gradsusr at gradsusr.org
>>>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>>>
>>>>>
>>>>
>>>> _______________________________________________
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>>>>
>>>
>>>
>>> --
>>> Jeff Duda
>>> Graduate research assistant
>>> University of Oklahoma School of Meteorology
>>> Center for Analysis and Prediction of Storms
>>>
>>> _______________________________________________
>>> gradsusr mailing list
>>> gradsusr at gradsusr.org
>>> http://gradsusr.org/mailman/listinfo/gradsusr
>>>
>>>
>>
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>>
>
>
> --
> Jeff Duda
> Graduate research assistant
> University of Oklahoma School of Meteorology
> Center for Analysis and Prediction of Storms
>
>
> _______________________________________________
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>
>
>
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