smooth_raster

Create kde density version of a raster

Privacy protected raster maps
can be created from spatial point data. Protection
methods include smoothing of dichotomous variables by de Jonge and de Wolf (2016)
<doi:10.1007/978-3-319-45381-1_9>, continuous variables by de Wolf and
de Jonge (2018) <doi:10.1007/978-3-319-99771-1_23>, suppressing
revealing values and a generalization of the quad tree method by
Suñé, Rovira, Ibáñez and Farré (2017) <doi:10.2901/EUROSTAT.C2017.001>.

Edwin Jonge

sdcSpatial

Statistical Disclosure Control for Spatial Data

Edwin de Jonge

Peter-Paul de Wolf

Douwe Hut

Sapphire Han

smooth_raster function

<dl><dt>x</dt>
<dd>raster object</dd>
<dt>bw</dt>
<dd>bandwidth</dd>
<dt>smooth_fact</dt>
<dd><code>integer</code>, disaggregate factor to have a
better smoothing</dd>
<dt>keep_resolution</dt>
<dd><code>integer</code>, should the returned map have same
resolution as <code>x</code> or keep the disaggregated raster resulting from
<code>smooth_fact</code>?</dd>
<dt>na.rm</dt>
<dd>should the <code>NA</code> value be removed from the raster?</dd>
<dt>pad</dt>
<dd>should the data be padded?</dd>
<dt>padValue</dt>
<dd>what should the padding value be?</dd>
<dt>threshold</dt>
<dd>cells with a lower (weighted) value of this threshold will be removed.</dd>
<dt>type</dt>
<dd>what is the type of smoothing (see <code><a href="/link/raster%3A%3Afocal()?package=sdcSpatial&version=0.6.1" data-mini-rdoc="sdcSpatial::raster::focal()">raster::focal()</a></code>)</dd>
<dt>...</dt>
<dd>passed through to <code><a href="/link/raster%3A%3Afocal()?package=sdcSpatial&version=0.6.1" data-mini-rdoc="sdcSpatial::raster::focal()">raster::focal()</a></code>.</dd></dl>

Arguments

Create kde density version of a raster — smooth_raster

<dl>

<dt>x</dt>
<dd>raster object</dd>


<dt>bw</dt>
<dd>bandwidth</dd>


<dt>smooth_fact</dt>
<dd><code>integer</code>, disaggregate factor to have a
better smoothing</dd>


<dt>keep_resolution</dt>
<dd><code>integer</code>, should the returned map have same
resolution as <code>x</code> or keep the disaggregated raster resulting from
<code>smooth_fact</code>?</dd>


<dt>na.rm</dt>
<dd>should the <code>NA</code> value be removed from the raster?</dd>


<dt>pad</dt>
<dd>should the data be padded?</dd>


<dt>padValue</dt>
<dd>what should the padding value be?</dd>


<dt>threshold</dt>
<dd>cells with a lower (weighted) value of this threshold will be removed.</dd>


<dt>type</dt>
<dd>what is the type of smoothing (see <code><a href='https://rdrr.io/pkg/terra/man/focal.html'>raster::focal()</a></code>)</dd>


<dt>...</dt>
<dd>passed through to <code><a href='https://rdrr.io/pkg/terra/man/focal.html'>raster::focal()</a></code>.</dd>

</dl>

smooth_raster: Create kde density version of a raster

Description

Usage

Arguments