rwmGetClassBreaks

Sets the values that determine how a vector of continuous data is classified
into categories. Called by mapCountryData() and mapGriddedData()

dplot

Enables mapping of country level and gridded user datasets.

Andy South

rworldmap

Mapping Global Data

rwmGetClassBreaks function

<dl><dt>dataColumn</dt>
<dd>the data vector to be classified, must be numeric</dd>
<dt>catMethod</dt>
<dd>the method to use to classify the data into categories,
choice of "pretty", "fixedWidth", "diverging",
"logFixedWidth","quantiles","categorical" or a numeric vector defining
breaks</dd>
<dt>numCats</dt>
<dd>number of categories to put the data in, may be overidden if
not possible under some classification methods</dd>
<dt>verbose</dt>
<dd>whether to print information messages to console TRUE/FALSE</dd>
<dt>midpoint</dt>
<dd>the midpoint to use if catMethod='diverging', default=0</dd></dl>

Arguments

Author

Internal function to set the numeric values for the breaks between data
categories — rwmGetClassBreaks

<dl>

<dt>dataColumn</dt>
<dd>the data vector to be classified, must be numeric</dd>


<dt>catMethod</dt>
<dd>the method to use to classify the data into categories,
choice of "pretty", "fixedWidth", "diverging",
"logFixedWidth","quantiles","categorical" or a numeric vector defining
breaks</dd>


<dt>numCats</dt>
<dd>number of categories to put the data in, may be overidden if
not possible under some classification methods</dd>


<dt>verbose</dt>
<dd>whether to print information messages to console TRUE/FALSE</dd>


<dt>midpoint</dt>
<dd>the midpoint to use if catMethod='diverging', default=0</dd>

</dl>

rwmGetClassBreaks: Internal function to set the numeric values for the breaks between data categories

Description

Usage

Value

Arguments

Author

See Also