add_tercile_probs

Adds columns 'below', 'normal' and 'above', containing predicted tercile probabilities, to a data table with ensemble forecasts.
The predicted probability is always the fraction of members ending up in the respective tercile.
The data table should either already have a column 'tercile_cat' (added by <code>add_tercile_cat</code>),
or <code>add_tercile_cat</code> will be run first.

Provides tools for processing and evaluating seasonal weather forecasts,
with an emphasis on tercile forecasts. We follow the World Meteorological Organization's
"Guidance on Verification of Operational Seasonal Climate Forecasts",
S.J.Mason (2018, ISBN: 978-92-63-11220-0, URL: <https://library.wmo.int/idurl/4/56227>).
The development was supported by the European Union’s Horizon 2020 research and innovation
programme under grant agreement no. 869730 (CONFER).
A comprehensive online tutorial is available at <http://files.nr.no/samba/CONFER/SeaVal/>.

Claudio Heinrich-Mertsching

SeaVal

Validation of Seasonal Weather Forecasts

Celine Cunen

Michael Scheuerer

add_tercile_probs function

<dl><dt>dt</dt>
<dd>the data table.</dd>
<dt>f</dt>
<dd>name of the column containing the forecast.</dd>
<dt>by</dt>
<dd>names of columns to group by</dd>
<dt>...</dt>
<dd>passed on to <code>add_tercile_cat</code>.</dd></dl>

Arguments

Add tercile probabilities to ensemble forecasts — add_tercile_probs

<dl>

<dt>dt</dt>
<dd>the data table.</dd>


<dt>f</dt>
<dd>name of the column containing the forecast.</dd>


<dt>by</dt>
<dd>names of columns to group by</dd>


<dt>...</dt>
<dd>passed on to <code>add_tercile_cat</code>.</dd>

</dl>

add_tercile_probs: Add tercile probabilities to ensemble forecasts

Description

Usage

Value

Arguments

Examples