tm_scale_asis

Scales in tmap are configured by the family of functions with prefix <code>tm_scale</code>.
Such function should be used for the input of the <code>.scale</code> arguments in the
layer functions (e.g. <code>fill.scale</code> in <code>tm_polygons()</code>).
The function <code>tm_scale_asis()</code> is used to take data values as they are and use them as such for the visual variable.

Thematic maps are geographical maps in which spatial data
distributions are visualized. This package offers a flexible,
layer-based, and easy to use approach to create thematic maps, such as
choropleths and bubble maps.

Martijn Tennekes

tmap

Thematic Maps

Jakub Nowosad

Joel Gombin

Sebastian Jeworutzki

Kent Russell

Richard Zijdeman

John Clouse

Robin Lovelace

Jannes Muenchow

Olivier Roy

Edzer Pebesma

Hugh Graham

Michael D. Sumner

Tim Appelhans

Nick Bearman

tm_scale_asis function

<dl><dt>values.scale</dt>
<dd>(generic scale argument) Scaling of the values. Only useful for size-related visual variables, such as <code>size</code> of <code>tm_symbols()</code> and <code>lwd</code> of <code>tm_lines()</code>.</dd>
<dt>value.neutral</dt>
<dd>(generic scale argument) Value that can be considered neutral. This is used for legends of other visual variables of the same map layer. E.g. when both <code>fill</code> and <code>size</code> are used for <code>tm_symbols()</code> (using filled circles), the size legend items are filled with the <code>value.neutral</code> color from the <code>fill.scale</code> scale, and fill legend items are bubbles of size <code>value.neutral</code> from the <code>size.scale</code> scale.</dd>
<dt>value.na</dt>
<dd>(generic scale argument) Value used for missing values. See tmap option <code>"value.na"</code> for defaults per visual variable.</dd>
<dt>...</dt>
<dd>Arguments caught (and not used) from the automatic function <code>tm_scale()</code></dd></dl>

Arguments

Scales: as is — tm_scale_asis

<dl>

<dt>values.scale</dt>
<dd>(generic scale argument) Scaling of the values. Only useful for size-related visual variables, such as <code>size</code> of <code>tm_symbols()</code> and <code>lwd</code> of <code>tm_lines()</code>.</dd>


<dt>value.neutral</dt>
<dd>(generic scale argument) Value that can be considered neutral. This is used for legends of other visual variables of the same map layer. E.g. when both <code>fill</code> and <code>size</code> are used for <code>tm_symbols()</code> (using filled circles), the size legend items are filled with the <code>value.neutral</code> color from the <code>fill.scale</code> scale, and fill legend items are bubbles of size <code>value.neutral</code> from the <code>size.scale</code> scale.</dd>


<dt>value.na</dt>
<dd>(generic scale argument) Value used for missing values. See tmap option <code>"value.na"</code> for defaults per visual variable.</dd>


<dt>...</dt>
<dd>Arguments caught (and not used) from the automatic function <code>tm_scale()</code></dd>

</dl>

Scales: as is

tm_scale_asis: Scales: as is

Description

Usage

Arguments

See Also