[Met_help] [rt.rap.ucar.edu #78708] History for finding NA bmodel lines with tc_stat
John Halley Gotway via RT
met_help at ucar.edu
Fri Nov 18 10:07:43 MST 2016
----------------------------------------------------------------
Initial Request
----------------------------------------------------------------
Hi,
I need to count all .tcst lines where amodel >=64 knots and bmodel has no
storm at all.
Back in METv4.1, I used tc_stat, but it doesn't seem to work with met-5.2.
I used tc_stat to filter by adding
-column_thresh amax_wind ge64 -column_str max_wind NA
to the -job filter.
This worked nicely. But in met-5.2, it doesn't find these times. Is "NA"
being treated differently? Is there any way to do it in met-5.2?
Thanks for your time,
Dave
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Complete Ticket History
----------------------------------------------------------------
Subject: finding NA bmodel lines with tc_stat
From: John Halley Gotway
Time: Thu Nov 17 13:38:01 2016
Hi Dave,
We it looks like we tried to get too fancy in the code, automatically
converting NA values to bad data values (-9999).
The following works, but sure looks a bit clumsy:
-column_thresh amax_wind ge64 -column_str blat -9999
John
On Thu, Nov 17, 2016 at 11:58 AM, David Ahijevych via RT
<met_help at ucar.edu>
wrote:
>
> Thu Nov 17 11:58:52 2016: Request 78708 was acted upon.
> Transaction: Ticket created by ahijevyc
> Queue: met_help
> Subject: finding NA bmodel lines with tc_stat
> Owner: Nobody
> Requestors: ahijevyc at ucar.edu
> Status: new
> Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=78708 >
>
>
> Hi,
>
> I need to count all .tcst lines where amodel >=64 knots and bmodel
has no
> storm at all.
>
> Back in METv4.1, I used tc_stat, but it doesn't seem to work with
met-5.2.
>
> I used tc_stat to filter by adding
>
> -column_thresh amax_wind ge64 -column_str max_wind NA
>
> to the -job filter.
>
> This worked nicely. But in met-5.2, it doesn't find these times.
Is "NA"
> being treated differently? Is there any way to do it in met-5.2?
>
> Thanks for your time,
> Dave
>
>
------------------------------------------------
Subject: finding NA bmodel lines with tc_stat
From: David Ahijevych
Time: Thu Nov 17 15:44:48 2016
Hi John,
Thanks for the reply, I was trying all the combinations of
column_str,
column_thresh and columns and values and I didn't think to try '-9999'
as a
string value to test. But that's exactly what I needed.
Thanks!
Dave
On Thu, Nov 17, 2016 at 1:38 PM, John Halley Gotway via RT <
met_help at ucar.edu> wrote:
> Hi Dave,
>
> We it looks like we tried to get too fancy in the code,
automatically
> converting NA values to bad data values (-9999).
>
> The following works, but sure looks a bit clumsy:
>
> -column_thresh amax_wind ge64 -column_str blat -9999
>
> John
>
> On Thu, Nov 17, 2016 at 11:58 AM, David Ahijevych via RT <
> met_help at ucar.edu>
> wrote:
>
> >
> > Thu Nov 17 11:58:52 2016: Request 78708 was acted upon.
> > Transaction: Ticket created by ahijevyc
> > Queue: met_help
> > Subject: finding NA bmodel lines with tc_stat
> > Owner: Nobody
> > Requestors: ahijevyc at ucar.edu
> > Status: new
> > Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=78708 >
> >
> >
> > Hi,
> >
> > I need to count all .tcst lines where amodel >=64 knots and bmodel
has no
> > storm at all.
> >
> > Back in METv4.1, I used tc_stat, but it doesn't seem to work with
> met-5.2.
> >
> > I used tc_stat to filter by adding
> >
> > -column_thresh amax_wind ge64 -column_str max_wind NA
> >
> > to the -job filter.
> >
> > This worked nicely. But in met-5.2, it doesn't find these times.
Is
> "NA"
> > being treated differently? Is there any way to do it in met-5.2?
> >
> > Thanks for your time,
> > Dave
> >
> >
>
>
------------------------------------------------
Subject: finding NA bmodel lines with tc_stat
From: John Halley Gotway
Time: Fri Nov 18 09:21:40 2016
Dave,
When MET reads the NA in a numeric column, like OBS_LAT and OBS_LON,
it
converts them into the internal bad data value of -9999.
I think using "-column_thresh OBS_LAT ==NA" would be most intuitive
right?
But STAT-Analysis doesn't like that. If you agree, I can add a future
development task to enhance STAT-Analysis to handle this.
Thanks,
John
On Thu, Nov 17, 2016 at 3:44 PM, David Ahijevych via RT
<met_help at ucar.edu>
wrote:
>
> <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=78708 >
>
> Hi John,
> Thanks for the reply, I was trying all the combinations of
column_str,
> column_thresh and columns and values and I didn't think to try '-
9999' as a
> string value to test. But that's exactly what I needed.
> Thanks!
>
> Dave
>
>
> On Thu, Nov 17, 2016 at 1:38 PM, John Halley Gotway via RT <
> met_help at ucar.edu> wrote:
>
> > Hi Dave,
> >
> > We it looks like we tried to get too fancy in the code,
automatically
> > converting NA values to bad data values (-9999).
> >
> > The following works, but sure looks a bit clumsy:
> >
> > -column_thresh amax_wind ge64 -column_str blat -9999
> >
> > John
> >
> > On Thu, Nov 17, 2016 at 11:58 AM, David Ahijevych via RT <
> > met_help at ucar.edu>
> > wrote:
> >
> > >
> > > Thu Nov 17 11:58:52 2016: Request 78708 was acted upon.
> > > Transaction: Ticket created by ahijevyc
> > > Queue: met_help
> > > Subject: finding NA bmodel lines with tc_stat
> > > Owner: Nobody
> > > Requestors: ahijevyc at ucar.edu
> > > Status: new
> > > Ticket <URL:
https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=78708
> >
> > >
> > >
> > > Hi,
> > >
> > > I need to count all .tcst lines where amodel >=64 knots and
bmodel has
> no
> > > storm at all.
> > >
> > > Back in METv4.1, I used tc_stat, but it doesn't seem to work
with
> > met-5.2.
> > >
> > > I used tc_stat to filter by adding
> > >
> > > -column_thresh amax_wind ge64 -column_str max_wind NA
> > >
> > > to the -job filter.
> > >
> > > This worked nicely. But in met-5.2, it doesn't find these
times. Is
> > "NA"
> > > being treated differently? Is there any way to do it in met-5.2?
> > >
> > > Thanks for your time,
> > > Dave
> > >
> > >
> >
> >
>
>
------------------------------------------------
Subject: finding NA bmodel lines with tc_stat
From: David Ahijevych
Time: Fri Nov 18 09:34:38 2016
Yes, I agree. Checking for NA with column_thresh would be more
intuitive.
On Fri, Nov 18, 2016 at 9:21 AM, John Halley Gotway via RT <
met_help at ucar.edu> wrote:
> Dave,
>
> When MET reads the NA in a numeric column, like OBS_LAT and OBS_LON,
it
> converts them into the internal bad data value of -9999.
>
> I think using "-column_thresh OBS_LAT ==NA" would be most intuitive
right?
> But STAT-Analysis doesn't like that. If you agree, I can add a
future
> development task to enhance STAT-Analysis to handle this.
>
> Thanks,
> John
>
> On Thu, Nov 17, 2016 at 3:44 PM, David Ahijevych via RT
<met_help at ucar.edu
> >
> wrote:
>
> >
> > <URL: https://rt.rap.ucar.edu/rt/Ticket/Display.html?id=78708 >
> >
> > Hi John,
> > Thanks for the reply, I was trying all the combinations of
column_str,
> > column_thresh and columns and values and I didn't think to try '-
9999'
> as a
> > string value to test. But that's exactly what I needed.
> > Thanks!
> >
> > Dave
> >
> >
> > On Thu, Nov 17, 2016 at 1:38 PM, John Halley Gotway via RT <
> > met_help at ucar.edu> wrote:
> >
> > > Hi Dave,
> > >
> > > We it looks like we tried to get too fancy in the code,
automatically
> > > converting NA values to bad data values (-9999).
> > >
> > > The following works, but sure looks a bit clumsy:
> > >
> > > -column_thresh amax_wind ge64 -column_str blat -9999
> > >
> > > John
> > >
> > > On Thu, Nov 17, 2016 at 11:58 AM, David Ahijevych via RT <
> > > met_help at ucar.edu>
> > > wrote:
> > >
> > > >
> > > > Thu Nov 17 11:58:52 2016: Request 78708 was acted upon.
> > > > Transaction: Ticket created by ahijevyc
> > > > Queue: met_help
> > > > Subject: finding NA bmodel lines with tc_stat
> > > > Owner: Nobody
> > > > Requestors: ahijevyc at ucar.edu
> > > > Status: new
> > > > Ticket <URL: https://rt.rap.ucar.edu/rt/
> Ticket/Display.html?id=78708
> > >
> > > >
> > > >
> > > > Hi,
> > > >
> > > > I need to count all .tcst lines where amodel >=64 knots and
bmodel
> has
> > no
> > > > storm at all.
> > > >
> > > > Back in METv4.1, I used tc_stat, but it doesn't seem to work
with
> > > met-5.2.
> > > >
> > > > I used tc_stat to filter by adding
> > > >
> > > > -column_thresh amax_wind ge64 -column_str max_wind NA
> > > >
> > > > to the -job filter.
> > > >
> > > > This worked nicely. But in met-5.2, it doesn't find these
times. Is
> > > "NA"
> > > > being treated differently? Is there any way to do it in met-
5.2?
> > > >
> > > > Thanks for your time,
> > > > Dave
> > > >
> > > >
> > >
> > >
> >
> >
>
>
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