[Met_help] [rt.rap.ucar.edu #97169] History for cat_thresh
Julie Prestopnik via RT
met_help at ucar.edu
Mon Jan 11 09:03:16 MST 2021
----------------------------------------------------------------
Initial Request
----------------------------------------------------------------
Hi,
I am trying to output categorical statistics for aerosol optical depth
between 0 to 1 at 0.2 intervals. Looking at MET uder guide, is there a way
to set intervals as <0.2,0.2-0.4,0.4-0.6,0.6-0.8 and >0.8. I found the
following command form the user guide :
cat_thresh = [ >0.0, >=5.0 ];
Any help on this.
Thanks
Debasish
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Complete Ticket History
----------------------------------------------------------------
Subject: cat_thresh
From: Julie Prestopnik
Time: Wed Oct 21 16:43:11 2020
Hi Debasish.
I see you have a question about how to set the categorical thresholds
to
0.2 intervals between 0 and 1.
If you set
> cat_thresh = [ ==0.2 ];
you'd be using five probability bins:
0.0 to 0.2, 0.2 to 0.4, 0.4 to 0.6, 0.6 to 0.8, and 0.8 to 1.0
which sounds like what you would like to do.
Please give that a shot and let us know how it goes.
Thanks!
Julie
On Wed, Oct 21, 2020 at 1:03 PM Debasish Hazra via RT
<met_help at ucar.edu>
wrote:
>
> Wed Oct 21 13:02:40 2020: Request 97169 was acted upon.
> Transaction: Ticket created by debasish.hazra5 at gmail.com
> Queue: met_help
> Subject: cat_thresh
> Owner: Nobody
> Requestors: debasish.hazra5 at gmail.com
> Status: new
> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97169 >
>
>
> Hi,
> I am trying to output categorical statistics for aerosol optical
depth
> between 0 to 1 at 0.2 intervals. Looking at MET uder guide, is there
a way
> to set intervals as <0.2,0.2-0.4,0.4-0.6,0.6-0.8 and >0.8. I found
the
> following command form the user guide :
>
> cat_thresh = [ >0.0, >=5.0 ];
>
> Any help on this.
> Thanks
> Debasish
>
>
--
Julie Prestopnik (she/her/hers)
Software Engineer
National Center for Atmospheric Research
Research Applications Laboratory
Email: jpresto at ucar.edu
My working day may not be your working day. Please do not feel
obliged to
reply to this email outside of your normal working hours.
------------------------------------------------
Subject: cat_thresh
From: Debasish Hazra
Time: Wed Oct 21 19:01:40 2020
Thanks Julie. But if > cat_thresh = [ ==0.2 ]; is set this way, how
MET
will know 0.2 interval between 0 and 1 is needed ? Or that will
calculate
categorical threshold between the minimum and maximum value of the
variable
at 0.2 intervals ?
Debasish
On Wed, Oct 21, 2020 at 6:43 PM Julie Prestopnik via RT
<met_help at ucar.edu>
wrote:
> Hi Debasish.
>
> I see you have a question about how to set the categorical
thresholds to
> 0.2 intervals between 0 and 1.
>
> If you set
>
> > cat_thresh = [ ==0.2 ];
>
> you'd be using five probability bins:
> 0.0 to 0.2, 0.2 to 0.4, 0.4 to 0.6, 0.6 to 0.8, and 0.8 to 1.0
> which sounds like what you would like to do.
>
> Please give that a shot and let us know how it goes.
>
> Thanks!
>
> Julie
>
> On Wed, Oct 21, 2020 at 1:03 PM Debasish Hazra via RT
<met_help at ucar.edu>
> wrote:
>
> >
> > Wed Oct 21 13:02:40 2020: Request 97169 was acted upon.
> > Transaction: Ticket created by debasish.hazra5 at gmail.com
> > Queue: met_help
> > Subject: cat_thresh
> > Owner: Nobody
> > Requestors: debasish.hazra5 at gmail.com
> > Status: new
> > Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97169 >
> >
> >
> > Hi,
> > I am trying to output categorical statistics for aerosol optical
depth
> > between 0 to 1 at 0.2 intervals. Looking at MET uder guide, is
there a
> way
> > to set intervals as <0.2,0.2-0.4,0.4-0.6,0.6-0.8 and >0.8. I found
the
> > following command form the user guide :
> >
> > cat_thresh = [ >0.0, >=5.0 ];
> >
> > Any help on this.
> > Thanks
> > Debasish
> >
> >
>
> --
> Julie Prestopnik (she/her/hers)
> Software Engineer
> National Center for Atmospheric Research
> Research Applications Laboratory
> Email: jpresto at ucar.edu
>
> My working day may not be your working day. Please do not feel
obliged to
> reply to this email outside of your normal working hours.
>
>
------------------------------------------------
Subject: cat_thresh
From: John Halley Gotway
Time: Fri Oct 23 10:40:52 2020
Hi Deb and Julie,
So the setting Julie suggested would work... but only when verifying a
probability forecast and not for continuous data, like AOD.
Deb, MET produces two different types of categorical output for data
like
AOD.
- Use a single threshold to define a 2x2 contingency table and write
the
output to the CTC and CTS line types.
- Use multiple thresholds to define an NxN contingency table and write
the
output to the MCTC and MCTS line types.
It sounds like you're interested in doing the latter. So I'd recommend
running with:
cat_thresh = [ >0.2, >0.4, >0.6, >0.8 ];
And make sure that you've requested MCTC and MCTS output in the
"output_flag" config file setting:
These 4 thresholds will be used to create a 5 by 5 contingency table.
And
each fcst/obs matched pair will be placed into one of those 25 cells.
The
raw counts of the 25 cells are written to a single MCTC output line.
And
the corresponding statistics are written to a single MCTS output line.
The contents of the MCTS output line type are described here:
https://dtcenter.github.io/MET/latest/Users_Guide/point-
stat.html?highlight=mcts#id13
Hope that helps.
Thanks,
John
On Wed, Oct 21, 2020 at 7:02 PM Debasish Hazra via RT
<met_help at ucar.edu>
wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97169 >
>
> Thanks Julie. But if > cat_thresh = [ ==0.2 ]; is set this way, how
MET
> will know 0.2 interval between 0 and 1 is needed ? Or that will
calculate
> categorical threshold between the minimum and maximum value of the
variable
> at 0.2 intervals ?
>
> Debasish
>
> On Wed, Oct 21, 2020 at 6:43 PM Julie Prestopnik via RT
<met_help at ucar.edu
> >
> wrote:
>
> > Hi Debasish.
> >
> > I see you have a question about how to set the categorical
thresholds to
> > 0.2 intervals between 0 and 1.
> >
> > If you set
> >
> > > cat_thresh = [ ==0.2 ];
> >
> > you'd be using five probability bins:
> > 0.0 to 0.2, 0.2 to 0.4, 0.4 to 0.6, 0.6 to 0.8, and 0.8 to 1.0
> > which sounds like what you would like to do.
> >
> > Please give that a shot and let us know how it goes.
> >
> > Thanks!
> >
> > Julie
> >
> > On Wed, Oct 21, 2020 at 1:03 PM Debasish Hazra via RT
<met_help at ucar.edu
> >
> > wrote:
> >
> > >
> > > Wed Oct 21 13:02:40 2020: Request 97169 was acted upon.
> > > Transaction: Ticket created by debasish.hazra5 at gmail.com
> > > Queue: met_help
> > > Subject: cat_thresh
> > > Owner: Nobody
> > > Requestors: debasish.hazra5 at gmail.com
> > > Status: new
> > > Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97169
> >
> > >
> > >
> > > Hi,
> > > I am trying to output categorical statistics for aerosol optical
depth
> > > between 0 to 1 at 0.2 intervals. Looking at MET uder guide, is
there a
> > way
> > > to set intervals as <0.2,0.2-0.4,0.4-0.6,0.6-0.8 and >0.8. I
found the
> > > following command form the user guide :
> > >
> > > cat_thresh = [ >0.0, >=5.0 ];
> > >
> > > Any help on this.
> > > Thanks
> > > Debasish
> > >
> > >
> >
> > --
> > Julie Prestopnik (she/her/hers)
> > Software Engineer
> > National Center for Atmospheric Research
> > Research Applications Laboratory
> > Email: jpresto at ucar.edu
> >
> > My working day may not be your working day. Please do not feel
obliged
> to
> > reply to this email outside of your normal working hours.
> >
> >
>
>
------------------------------------------------
Subject: cat_thresh
From: Debasish Hazra
Time: Fri Oct 23 13:37:21 2020
Thanks John. I will try that, but a quick question before that. How
about
generating a spatial map of CSI or FAR when using multiple thresholds
for
categorical statistics ? I mean to say, if I use one of your MET tool
"series stat", that will generate a map of CSI/FAR for a single
threshold
set in the config file, but will that generate a similar map for
multiple
thresholds as well ? will that be under MCTC or MCTS ?
Thanks
Debasish
On Fri, Oct 23, 2020 at 12:40 PM John Halley Gotway via RT <
met_help at ucar.edu> wrote:
> Hi Deb and Julie,
>
> So the setting Julie suggested would work... but only when verifying
a
> probability forecast and not for continuous data, like AOD.
>
> Deb, MET produces two different types of categorical output for data
like
> AOD.
> - Use a single threshold to define a 2x2 contingency table and write
the
> output to the CTC and CTS line types.
> - Use multiple thresholds to define an NxN contingency table and
write the
> output to the MCTC and MCTS line types.
>
> It sounds like you're interested in doing the latter. So I'd
recommend
> running with:
>
> cat_thresh = [ >0.2, >0.4, >0.6, >0.8 ];
>
> And make sure that you've requested MCTC and MCTS output in the
> "output_flag" config file setting:
>
> These 4 thresholds will be used to create a 5 by 5 contingency
table. And
> each fcst/obs matched pair will be placed into one of those 25
cells. The
> raw counts of the 25 cells are written to a single MCTC output line.
And
> the corresponding statistics are written to a single MCTS output
line.
>
> The contents of the MCTS output line type are described here:
>
> https://dtcenter.github.io/MET/latest/Users_Guide/point-
stat.html?highlight=mcts#id13
>
> Hope that helps.
>
> Thanks,
> John
>
> On Wed, Oct 21, 2020 at 7:02 PM Debasish Hazra via RT
<met_help at ucar.edu>
> wrote:
>
> >
> > <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97169 >
> >
> > Thanks Julie. But if > cat_thresh = [ ==0.2 ]; is set this way,
how MET
> > will know 0.2 interval between 0 and 1 is needed ? Or that will
calculate
> > categorical threshold between the minimum and maximum value of the
> variable
> > at 0.2 intervals ?
> >
> > Debasish
> >
> > On Wed, Oct 21, 2020 at 6:43 PM Julie Prestopnik via RT <
> met_help at ucar.edu
> > >
> > wrote:
> >
> > > Hi Debasish.
> > >
> > > I see you have a question about how to set the categorical
thresholds
> to
> > > 0.2 intervals between 0 and 1.
> > >
> > > If you set
> > >
> > > > cat_thresh = [ ==0.2 ];
> > >
> > > you'd be using five probability bins:
> > > 0.0 to 0.2, 0.2 to 0.4, 0.4 to 0.6, 0.6 to 0.8, and 0.8 to
1.0
> > > which sounds like what you would like to do.
> > >
> > > Please give that a shot and let us know how it goes.
> > >
> > > Thanks!
> > >
> > > Julie
> > >
> > > On Wed, Oct 21, 2020 at 1:03 PM Debasish Hazra via RT <
> met_help at ucar.edu
> > >
> > > wrote:
> > >
> > > >
> > > > Wed Oct 21 13:02:40 2020: Request 97169 was acted upon.
> > > > Transaction: Ticket created by debasish.hazra5 at gmail.com
> > > > Queue: met_help
> > > > Subject: cat_thresh
> > > > Owner: Nobody
> > > > Requestors: debasish.hazra5 at gmail.com
> > > > Status: new
> > > > Ticket <URL:
> https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97169
> > >
> > > >
> > > >
> > > > Hi,
> > > > I am trying to output categorical statistics for aerosol
optical
> depth
> > > > between 0 to 1 at 0.2 intervals. Looking at MET uder guide, is
there
> a
> > > way
> > > > to set intervals as <0.2,0.2-0.4,0.4-0.6,0.6-0.8 and >0.8. I
found
> the
> > > > following command form the user guide :
> > > >
> > > > cat_thresh = [ >0.0, >=5.0 ];
> > > >
> > > > Any help on this.
> > > > Thanks
> > > > Debasish
> > > >
> > > >
> > >
> > > --
> > > Julie Prestopnik (she/her/hers)
> > > Software Engineer
> > > National Center for Atmospheric Research
> > > Research Applications Laboratory
> > > Email: jpresto at ucar.edu
> > >
> > > My working day may not be your working day. Please do not feel
obliged
> > to
> > > reply to this email outside of your normal working hours.
> > >
> > >
> >
> >
>
>
------------------------------------------------
Subject: cat_thresh
From: John Halley Gotway
Time: Fri Oct 23 18:07:41 2020
Deb,
I believe that series_analysis has the ability to compute MCTS
statistics.
But be aware that the number of MCTS stats are relatively limited.
Please just check in the MET users guide and series_analysis config
file
for details.
John
On Fri, Oct 23, 2020 at 1:37 PM Debasish Hazra via RT
<met_help at ucar.edu>
wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97169 >
>
> Thanks John. I will try that, but a quick question before that. How
about
> generating a spatial map of CSI or FAR when using multiple
thresholds for
> categorical statistics ? I mean to say, if I use one of your MET
tool
> "series stat", that will generate a map of CSI/FAR for a single
threshold
> set in the config file, but will that generate a similar map for
multiple
> thresholds as well ? will that be under MCTC or MCTS ?
>
> Thanks
> Debasish
>
> On Fri, Oct 23, 2020 at 12:40 PM John Halley Gotway via RT <
> met_help at ucar.edu> wrote:
>
> > Hi Deb and Julie,
> >
> > So the setting Julie suggested would work... but only when
verifying a
> > probability forecast and not for continuous data, like AOD.
> >
> > Deb, MET produces two different types of categorical output for
data like
> > AOD.
> > - Use a single threshold to define a 2x2 contingency table and
write the
> > output to the CTC and CTS line types.
> > - Use multiple thresholds to define an NxN contingency table and
write
> the
> > output to the MCTC and MCTS line types.
> >
> > It sounds like you're interested in doing the latter. So I'd
recommend
> > running with:
> >
> > cat_thresh = [ >0.2, >0.4, >0.6, >0.8 ];
> >
> > And make sure that you've requested MCTC and MCTS output in the
> > "output_flag" config file setting:
> >
> > These 4 thresholds will be used to create a 5 by 5 contingency
table. And
> > each fcst/obs matched pair will be placed into one of those 25
cells. The
> > raw counts of the 25 cells are written to a single MCTC output
line. And
> > the corresponding statistics are written to a single MCTS output
line.
> >
> > The contents of the MCTS output line type are described here:
> >
> >
> https://dtcenter.github.io/MET/latest/Users_Guide/point-
stat.html?highlight=mcts#id13
> >
> > Hope that helps.
> >
> > Thanks,
> > John
> >
> > On Wed, Oct 21, 2020 at 7:02 PM Debasish Hazra via RT
<met_help at ucar.edu
> >
> > wrote:
> >
> > >
> > > <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97169 >
> > >
> > > Thanks Julie. But if > cat_thresh = [ ==0.2 ]; is set this way,
how MET
> > > will know 0.2 interval between 0 and 1 is needed ? Or that will
> calculate
> > > categorical threshold between the minimum and maximum value of
the
> > variable
> > > at 0.2 intervals ?
> > >
> > > Debasish
> > >
> > > On Wed, Oct 21, 2020 at 6:43 PM Julie Prestopnik via RT <
> > met_help at ucar.edu
> > > >
> > > wrote:
> > >
> > > > Hi Debasish.
> > > >
> > > > I see you have a question about how to set the categorical
thresholds
> > to
> > > > 0.2 intervals between 0 and 1.
> > > >
> > > > If you set
> > > >
> > > > > cat_thresh = [ ==0.2 ];
> > > >
> > > > you'd be using five probability bins:
> > > > 0.0 to 0.2, 0.2 to 0.4, 0.4 to 0.6, 0.6 to 0.8, and 0.8 to
1.0
> > > > which sounds like what you would like to do.
> > > >
> > > > Please give that a shot and let us know how it goes.
> > > >
> > > > Thanks!
> > > >
> > > > Julie
> > > >
> > > > On Wed, Oct 21, 2020 at 1:03 PM Debasish Hazra via RT <
> > met_help at ucar.edu
> > > >
> > > > wrote:
> > > >
> > > > >
> > > > > Wed Oct 21 13:02:40 2020: Request 97169 was acted upon.
> > > > > Transaction: Ticket created by debasish.hazra5 at gmail.com
> > > > > Queue: met_help
> > > > > Subject: cat_thresh
> > > > > Owner: Nobody
> > > > > Requestors: debasish.hazra5 at gmail.com
> > > > > Status: new
> > > > > Ticket <URL:
> > https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=97169
> > > >
> > > > >
> > > > >
> > > > > Hi,
> > > > > I am trying to output categorical statistics for aerosol
optical
> > depth
> > > > > between 0 to 1 at 0.2 intervals. Looking at MET uder guide,
is
> there
> > a
> > > > way
> > > > > to set intervals as <0.2,0.2-0.4,0.4-0.6,0.6-0.8 and >0.8. I
found
> > the
> > > > > following command form the user guide :
> > > > >
> > > > > cat_thresh = [ >0.0, >=5.0 ];
> > > > >
> > > > > Any help on this.
> > > > > Thanks
> > > > > Debasish
> > > > >
> > > > >
> > > >
> > > > --
> > > > Julie Prestopnik (she/her/hers)
> > > > Software Engineer
> > > > National Center for Atmospheric Research
> > > > Research Applications Laboratory
> > > > Email: jpresto at ucar.edu
> > > >
> > > > My working day may not be your working day. Please do not
feel
> obliged
> > > to
> > > > reply to this email outside of your normal working hours.
> > > >
> > > >
> > >
> > >
> >
> >
>
>
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