[ncl-talk] Fw: Taylor diagram
Dennis Shea
shea at ucar.edu
Wed Feb 13 08:29:20 MST 2019
Look in contributed.ncl for code* taylor_stats*
<http://www.ncl.ucar.edu/Document/Functions/Contributed/taylor_stats.shtml>
RMSE:
*wgt_arearmse*
<http://www.ncl.ucar.edu/Document/Functions/Built-in/wgt_arearmse.shtml>
*dim_rmsd_n*
<http://www.ncl.ucar.edu/Document/Functions/Built-in/dim_rmsd_n.shtml>
or *dim_rmsd_n_Wrap*
<http://www.ncl.ucar.edu/Document/Functions/Contributed/dim_rmsd_n_Wrap.shtml>
On Wed, Feb 13, 2019 at 2:52 AM Serena Illig <serena.illig at gmail.com> wrote:
> Sorry, I am not an NCL user. I can't help you with this.
> I used NCL only for plotting Taylor diagrams years ago, but I computed the
> correlations and ratio with another software.
> S.
>
> .¸. , . .·´¯`·
> ><(((º> `·.¸.·´¯`·...¸><(((º>¸.¸. , . .·´¯`· ><(((º> .
> `·.¸.·´¯`·...¸><(((º> .
>
> .
> Serena ILLIG-THEVENIN LEGOS/IRD .
>
> .
> University of Cape Town - UCT .
> Department of Oceanography .
> Private Bag X3, Rondebosch 7701 .
> SOUTH AFRICA .
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> E-mail : *serena.illig at ird.fr <serena.illig at ird.fr> *
> .
> Web-site : http://sillig.free.fr .
> Fax : +27 21 650 3979 .
> .
> <º)))><..·´
>
>
>
> On Wed, Feb 13, 2019 at 11:19 AM Ehsan Taghizadeh <
> ehsantaghizadeh at yahoo.com> wrote:
>
>> Dear Serena
>> Thank you so much for your nice reply.
>> I have another question and I'll be thankful if I could have your help
>> again.
>> Does NCL have a script which plots RMSE (or ratio of RMSE or something
>> else related to RMSE), too? Because there is some comments about RMSE at
>> https://www.ncl.ucar.edu/Applications/taylor.shtml, but it seems none of
>> the examples show RMSE. However taylor_2.ncl has just drawn its line with
>>
>> res at centerDiffRMS = True ; RMS 'circles'
>> res at centerDiffRMS_color = "LightGray" ; default is "black"
>>
>> But there is no line to read RMSE in this example.
>> I'll be thankful if I hear from you.
>>
>> Sincerely
>> Ehsan
>>
>>
>> On Wednesday, February 13, 2019, 12:27:13 PM GMT+3:30, Serena Illig <
>> serena.illig at gmail.com> wrote:
>>
>>
>> Dear Ehsan,
>>
>> The answer is ratio need to be the ratio of standard deviation (STD).
>> Reading the Taylor (2001) article, you will see that the ratio that has
>> to be computed is the ratio of standard deviation. So the labels are
>> corrects.
>> Looking at https://www.ncl.ucar.edu/Applications/taylor.shtml and in
>> particular at taylor_2.ncl example, you will see that second point of "p"
>> data set has a ratio of 0.5 which is represented by the blue point labeled
>> 2 in the diagram that has a distance from the origin of 0.5. Thus no
>> root_square is applied to ratio before drawing the point in the diagram.
>> So ratio has to be the ratio of STD, and the comment in taylor_3.ncl is
>> erroneous.
>>
>> Have a nice day,
>>
>> Serena
>>
>> .¸. , . .·´¯`·
>> ><(((º> `·.¸.·´¯`·...¸><(((º>¸.¸. , . .·´¯`· ><(((º> .
>> `·.¸.·´¯`·...¸><(((º> .
>>
>> .
>> Serena ILLIG-THEVENIN LEGOS/IRD .
>>
>> .
>> University of Cape Town - UCT .
>> Department of Oceanography .
>> Private Bag X3, Rondebosch 7701 .
>> SOUTH AFRICA .
>>
>> .
>> E-mail : *serena.illig at ird.fr * .
>> Web-site : http://sillig.free.fr .
>> Fax : +27 21 650 3979 .
>> .
>> <º)))><..·´
>>
>>
>>
>> On Tue, Feb 12, 2019 at 7:10 PM Ehsan Taghizadeh <
>> ehsantaghizadeh at yahoo.com> wrote:
>>
>> Hi,
>> May I ask about "_ratio" in "taylor_3.ncl" (
>> https://www.ncl.ucar.edu/Applications/taylor.shtml), which is ratio of
>> "standard deviations" or "variances". Because in that has been written
>> "_ratio are the ratio: Case_Variance/Reference_Variance"! However the label
>> of axes are "Standard Deviations (Normalized)"!
>> I'll be thankful if I have any help.
>>
>> Sincerely
>>
>> ----- Forwarded Message -----
>> *From:* Ehsan Taghizadeh <ehsantaghizadeh at yahoo.com>
>> *To:* Ncl-talk <ncl-talk at ucar.edu>
>> *Sent:* Friday, February 8, 2019, 4:40:35 PM GMT+3:30
>> *Subject:* Taylor diagram
>>
>> Hi,
>> First of all I really sorry hearing about the destiny of NCL. I have had
>> many helps from ncl-talk to write several scripts for my PhD thesis and
>> also for my job. However I hope the best for NCL team.
>>
>> Second I have a problem again to draw a plot and I'll be thankful if I
>> could have any help.
>> I want to plot taylor diagram and for that I saw these links:
>> http://www.ncl.ucar.edu/Document/Functions/Contributed/taylor_stats.shtml
>> and
>> https://www.ncl.ucar.edu/Applications/taylor.shtml
>> Based on them I've plot the attached one (taylor.png). However I want to
>> have RMSE too (something like Figure 1 in Taylor Diagram Primer
>> (Taylor_2005.png)). May be taylor_stats could help for this, but I'm not
>> sure. Could I know how to add RMSE to this plot. However it doesn't matter
>> to be normalized taylor diagram or not.
>> My data and scripts are also attached, if needed.
>>
>> Sincerely
>> Ehsan
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