restrict_to_country

Restricts a dataset to one or more countries, specified by their names. If you have lon/lat data and don't know
which countries these coordinates belong to, see <code>add_country_names</code>. Can restrict data to a rectangle around a given country
as well (usually looks nicer for plotting).

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

restrict_to_country function

<dl><dt>dt</dt>
<dd>the data table.</dd>
<dt>ct</dt>
<dd>name of the country, or vector containing multiple country names</dd>
<dt>rectangle</dt>
<dd>logical. If FALSE (default), the data is restricted to the gridcells for which the centerpoint lies within the selected country (e.g. for computing mean scores for a country).
If TRUE, the data is kept for a rectangle containing the entire country, therefore also containing gridpoints outside the country. This is the preferred option for plotting data
for a specific country.</dd>
<dt>tol</dt>
<dd>Only used when <code>rectangle == TRUE</code>. A tolerance value for widening the plotting window, making things look a bit nicer.</dd></dl>

Arguments

restricts data to a specified country — restrict_to_country

<dl>

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


<dt>ct</dt>
<dd>name of the country, or vector containing multiple country names</dd>


<dt>rectangle</dt>
<dd>logical. If FALSE (default), the data is restricted to the gridcells for which the centerpoint lies within the selected country (e.g. for computing mean scores for a country).
If TRUE, the data is kept for a rectangle containing the entire country, therefore also containing gridpoints outside the country. This is the preferred option for plotting data
for a specific country.</dd>


<dt>tol</dt>
<dd>Only used when <code>rectangle == TRUE</code>. A tolerance value for widening the plotting window, making things look a bit nicer.</dd>

</dl>

restrict_to_country: restricts data to a specified country

Description

Usage

Value

Arguments

Examples