[gradsusr] Problem in setting vrange for negative values -scatterplot

[Maida Zahid]

Rashed

           I think you are not getting my point. Anyhow thank you for your
suggestions.

Maida

On Wed, Aug 1, 2012 at 3:34 PM, Rashed Mahmood <rashidcomsis at gmail.com>wrote:

>  Maida
>
> One further question that may be looked at is:
> the command below should give one "Time" value
>
> cpc=ave(soilw,t=1,t=27)/100
>
> and similar is true for "mod" variable.
>
> If above is fine.. Another test can be to check anomaly and see if extends
> to negative location,,,something like this:
>
> cpc2=cpc-soilw
>
> mod2=mod-mrso
>
> d cpc2;mod2
>
> Good luck
>
> Rashed
>
>
>
>
>
>
>
> On Wed, Aug 1, 2012 at 1:34 PM, Maida Zahid <maidazahid.pmd at gmail.com>wrote:
>
>> Rashed
>>
>>  Thank you for replying. The data surely have negative values. You can
>> see variables range from the following commands.
>>
>> ga-> set gxout scatter
>> ga-> d cpc;mod
>> *-0.5 8 -15 50 *
>>
>> Output of the above mentioned commands is attached so that you can have a
>> look at the range.
>>
>> Regards
>> Maida
>>
>> On Wed, Aug 1, 2012 at 1:52 PM, Rashed Mahmood <rashidcomsis at gmail.com>wrote:
>>
>>> Maida
>>>
>>> Are you sure that your variables "cpc" and "mod" have negative values?
>>> From your code it appears (but I am not sure) that the variables are
>>> positive. As you know, the scatter plot won't move towards negative axis
>>> unless one of the variables have negative values. So may be you would like
>>> to confirm variable values first.
>>>
>>> Good luck
>>>
>>> Rashed
>>>
>>>
>>>
>>>
>>>
>>> On Wed, Aug 1, 2012 at 12:26 PM, Maida Zahid <maidazahid.pmd at gmail.com>wrote:
>>>
>>>> Dear Sir,
>>>>
>>>>     Thank you so much. I have used this link already for making scatter
>>>> plot. The main problem is that scatter plot is plotting only positive
>>>> values neglecting negative values whether i set vrange or not.
>>>>
>>>> Regards
>>>>
>>>>
>>
>>
>>> On Wed, Aug 1, 2012 at 12:45 PM, Muhammad Afzaal <afzaalkarori at gmail.com
>>>> > wrote:
>>>>
>>>>> Dear Maida
>>>>>
>>>>> Following link would be useful for you;
>>>>>
>>>>>
>>>>> http://cookbooks.opengrads.org/index.php?title=Recipe-009:_Scatter_plot_with_linear_fit_and_basic_statistics
>>>>>
>>>>>
>>>>>
>>>>> MUHAMMAD AFZAAL KARORI
>>>>>
>>>>> Institute of Atmospheric Physics
>>>>> Chinese Academy of Sciences
>>>>> Beijing, China
>>>>>
>>>>> Pakistan Meteorological Department
>>>>> Islamabad - Pakistan
>>>>>
>>>>>
>>>>> On Tue, Jul 31, 2012 at 12:10 PM, Maida Zahid <
>>>>> maidazahid.pmd at gmail.com> wrote:
>>>>>
>>>>>> Dear all,
>>>>>>
>>>>>>
>>>>>>   I am trying to draw scatter plot from two files. Following are the
>>>>>> commands which i have used to plot it.
>>>>>>
>>>>>> xdfopen soilw.mon.mean.v2-2deg-197901-200512-JJAS.ctl
>>>>>> define cpc=ave(soilw,t=1,t=27)/100
>>>>>> xdfopen
>>>>>> mrso_Lmon_bcc-csm1-1-2deg_historical_r1i1p1_197901-200512-JJAS.ctl
>>>>>> set dfile 2
>>>>>> define mod=ave(mrso,t=1,t=27)/100
>>>>>> set gxout scatter
>>>>>> set vrange -0.5 8
>>>>>> set vrange2 -2 20
>>>>>> d cpc;mod
>>>>>>
>>>>>> output of this display is attached.
>>>>>> I am unable to set my axis for negative values.Every time it starts
>>>>>> from 0 to positive values either I set the "vrange" to positive values or
>>>>>> negative values.
>>>>>> How can i solve this problem?
>>>>>>
>>>>>> grads version and Os details are:
>>>>>> Grads version:Grid Analysis and Display System (GrADS) Version 1.9b4
>>>>>> Linux OS: Linux cslogin 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:14 EDT
>>>>>> 2010 x86_64 x86_64 x86_64 GNU/Linux
>>>>>>
>>>>>>
>>>>>> Thanks in advance.
>>>>>>
>>>>>> Regards
>>>>>> Maida Zahid
>>>>>>
>>>>>>
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>>>>>>
>>>>>>
>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> ------------------------------------------------------
>>>> Maida Zahid
>>>> Assistant Director/Meteorologist
>>>> Research & Development Division
>>>> Pakistan Meteorological Department
>>>> Sector H-8/2, Islamabad
>>>> -------------------------------------------------------
>>>> Contact # : 051-9250334
>>>> -------------------------------------------------------
>>>>
>>>>
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>>>>
>>>
>>>
>>>
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>>
>>
>> --
>>
>>
>>
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>
>
> --
> ========================
> *Rashed Mahmood*
> *PhD Student*
> *Institute of Atmospheric Physics (IAP)*
> *Chinese Academy of Sciences (CAS)*
> *Beijing, China.*
>
>
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>


-- 
------------------------------------------------------
Maida Zahid
Assistant Director/Meteorologist
Research & Development Division
Pakistan Meteorological Department
Sector H-8/2, Islamabad
-------------------------------------------------------
Contact # : 051-9250334
-------------------------------------------------------
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