[ncl-talk] Do not show significance level in a correlation map

[Md. Jalal Uddin]

  Thank you very much, sir. I used the following resources:

 opt                                       = True
  opt at gsnShadeFillType      = "pattern"
  opt at gsnShadeLow            = 17          ; stipple
  opt at gsnShadeFillScaleF   = 0.5         ; add extra density

  plot = gsn_csm_contour_map(wks,r_sst, res)  ; create plot
  plot2 = gsn_csm_contour(wks,p, res2)
  plot2 = gsn_contour_shade(plot2,0.05,999.,opt)\

  overlay (plot, plot2)

 draw(plot)
 frame(wks)

However, I did not get output as stipple areas where p value is less than
0.05. I added the full code including Nino data in the attachment. Should I
send the SST data (sst.mon.mean.nc) via ftp?

On Sat, 13 Jan 2024 at 06:55, Adam Phillips <asphilli at ucar.edu> wrote:

> Hi Jalal,
> As you are pattern filling, and the default is color filling, you need to
> set:
> opt at gsnShadeFillType = "pattern"
> I am also unclear what you mean by this statement:
> "...to show the significance level as a shaded pattern where p value is
> less than 0.05 and 0.01"
>
> Do you want to stipple areas less than .05? If so the following code
> should do that:
>   opt                      = True
>   opt at gsnShade*Low*         = 17          ; stipple
>   opt at gsnShadeFillScaleF   = 0.5         ; add extra density
>   plot2 = gsn_contour_shade(plot2,0.05,999.,opt)
>
> If instead you want to stipple areas less than .01, you will need to
> modify the contour levels in your res2 resource list to have a contour at
> .01:
>   res2 at cnMinLevelValF      = 0.00        ; set min contour level
>   res2 at cnMaxLevelValF      = .10        ; set max contour level
>   res2 at cnLevelSpacingF     = 0.01        ; set contour spacing
>
>   opt                      = True
>   opt at gsnShade*Low*         = 17          ; stipple
>   opt at gsnShadeFillScaleF   = 0.5         ; add extra density
>   plot2 = gsn_contour_shade(plot2,0.01,999.,opt)\
>
> Hope that answers your question. As always please respond to the ncl-talk
> email list with further questions.
> Best,
> Adam
>
> On Fri, Jan 5, 2024 at 6:15 AM Md. Jalal Uddin via ncl-talk <
> ncl-talk at mailman.ucar.edu> wrote:
>
>> Dear all,
>>
>> I have tried to use the gsn_contour_shade function to show the
>> significance level as a shaded pattern where p value is less than 0.05 and
>> 0.01. However, the output map does not show the shaded areas (please see
>> the attached map).
>>
>> Here are some codes:
>> r_sst  = escorc(ano_nino,ano_sstSON(lat|:,lon|:,time|:))        ;
>> ccr(lat,lon)
>> copy_VarCoords(ano_sstSON(0,:,:), r_sst)
>> r_sst at long_name = "Correlation: r_sst"
>>
>>   p = rtest(r_sst,42,0)
>>   copy_VarCoords(r_sst, p)
>>
>> opt                      = True
>> opt at gsnShadeHigh         = 17          ; stipple
>> opt at gsnShadeFillScaleF   = 0.5         ; add extra density
>> opt at gsnShadeFillDotSizeF = 0.002      ; make dots larger
>>
>>   plot = gsn_csm_contour_map(wks,r_sst, res)  ; create plot
>>
>>   plot2 = gsn_csm_contour(wks,p, res2)
>>   plot2 = gsn_contour_shade(plot2,0.01,0.05,opt)
>>
>>   overlay (plot, plot2)
>>
>>  draw(plot)
>>  frame(wks)
>>
>> Please find the full code in the attached file.
>>
>> Any suggestions would be appreciated.
>>
>> --
>>
>> *Regards,*
>>
>> Dr. Jalal
>>
>> *Postdoctoral Researcher,* Typhoon Research Center, Jeju National
>> University, South Korea
>>
>> *PhD* in Atmospheric Physics and Atmospheric Environment, NUIST, China
>>
>> *M.Sc.* in Applied Meteorology, NUIST, China
>>
>> *B.Sc.* in Disaster Management, PSTU, Bangladesh
>>
>> *Founder and Director* of Research Society
>>
>> *Website*: https://researchsociety20.org/founder-and-director/
>>
>> *E-mails*: founder-and-director at researchsociety20.org
>>
>>               jalal at jejunu.ac.kr
>>
>>               20205103002 at nuist.edu.cn
>> _______________________________________________
>> ncl-talk mailing list
>> ncl-talk at mailman.ucar.edu
>> List instructions, subscriber options, unsubscribe:
>> https://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>
>
>
> --
> Adam Phillips
> Associate Scientist IV, Climate Analysis Section
> Climate and Global Dynamics Laboratory
> National Center for Atmospheric Research
> www.cgd.ucar.edu/staff/asphilli/
>
> <http://www.cgd.ucar.edu/staff/asphilli>
>


-- 

*Regards,*

Dr. Jalal

*Postdoctoral Researcher,* Typhoon Research Center, Jeju National
University, South Korea

*PhD* in Atmospheric Physics and Atmospheric Environment, NUIST, China

*M.Sc.* in Applied Meteorology, NUIST, China

*B.Sc.* in Disaster Management, PSTU, Bangladesh

*Founder and Director* of Research Society

*Website*: https://researchsociety20.org/founder-and-director/

*E-mails*: founder-and-director at researchsociety20.org

              jalal at jejunu.ac.kr

              20205103002 at nuist.edu.cn
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20240116/a90aa545/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: sst_corr.ncl
Type: application/octet-stream
Size: 4471 bytes
Desc: not available
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20240116/a90aa545/attachment.obj>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: AMM_DMI_NINO_PDO_ELI_SepNovAvg_1980_2021.csv
Type: text/csv
Size: 2586 bytes
Desc: not available
URL: <https://mailman.ucar.edu/pipermail/ncl-talk/attachments/20240116/a90aa545/attachment.csv>