[Met_help] [rt.rap.ucar.edu #97513] History for ROC diagrams

[John Halley Gotway via RT]

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  Initial Request
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Folks - I'm creating plots of POFD_i vs PODY_i and connecting these points to generate a ROC as indicated on p. 414 or MET User's Guide v9. I am a little concerned that my "ROC" diagrams don't look anything like your Figure C.2: Example of ROC Curve on page 415. Attached is my sample ROC.

Efren A. Serra (Contractor)
Physicist

DeVine Consulting, Inc.
Naval Research Laboratory
Marine Meteorology Division
7 Grace Hopper Ave., STOP 2
Monterey, CA 93943
Code 7542
Mobile: 408-425-5027



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  Complete Ticket History
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Subject: ROC diagrams
From: John Halley Gotway
Time: Wed Nov 18 14:05:11 2020

Efren,

When making a ROC diagram, you usually include both points (0,0) and
(1,1).

That should result in a plot more similar this the one in Appendix C
of the
MET User's Guide:
https://dtcenter.github.io/MET/latest/Users_Guide/appendixC.html?highlight=roc#receiver-
operating-characteristic

John

On Wed, Nov 18, 2020 at 1:34 PM George McCabe via RT
<met_help at ucar.edu>
wrote:

>
> Wed Nov 18 13:34:31 2020: Request 97513 was acted upon.
> Transaction: Given to johnhg (John Halley Gotway) by mccabe
>        Queue: met_help
>      Subject: ROC diagrams
>        Owner: johnhg
>   Requestors: efren.serra.ctr at nrlmry.navy.mil
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97513 >
>
>
> This transaction appears to have no content
>

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Subject: ROC diagrams
From: Sampson, Mr. Buck
Time: Wed Nov 18 14:06:56 2020

Thanks.  As we thought.

Buck


-----Original Message-----
From: John Halley Gotway via RT <met_help at ucar.edu>
Sent: Wednesday, November 18, 2020 1:05 PM
To: Serra, Mr. Efren, Contractor, Code 7531
<efren.serra.ctr at nrlmry.navy.mil>
Cc: Sampson, Mr. Buck <Buck.Sampson at nrlmry.navy.mil>
Subject: Re: [rt.rap.ucar.edu #97513] ROC diagrams

Efren,

When making a ROC diagram, you usually include both points (0,0) and
(1,1).

That should result in a plot more similar this the one in Appendix C
of the
MET User's Guide:
https://dtcenter.github.io/MET/latest/Users_Guide/appendixC.html?highlight=roc#receiver-
operating-characteristic

John

On Wed, Nov 18, 2020 at 1:34 PM George McCabe via RT
<met_help at ucar.edu>
wrote:

>
> Wed Nov 18 13:34:31 2020: Request 97513 was acted upon.
> Transaction: Given to johnhg (John Halley Gotway) by mccabe
>        Queue: met_help
>      Subject: ROC diagrams
>        Owner: johnhg
>   Requestors: efren.serra.ctr at nrlmry.navy.mil
>       Status: new
>  Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97513
> >
>
>
> This transaction appears to have no content
>


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