breaks.grid

This function can be used to define breakpoints for use with the functions <code>draw.grid</code> and <code>legend.grid</code>

Create simple maps; add sub-plots like pie plots to a map or any other plot; format, plot and export gridded data. The package was developed for displaying fisheries data but most functions can be used for more generic data visualisation.

Hans Gerritsen

mapplots

Data Visualisation on Maps

breaks.grid function

<dl> <dt>grd</dt>
<dd>an array produced by <code>make.grid</code> or a list produced by <code>make.multigrid</code> or a vector of positive values.</dd> <dt>quantile</dt>
<dd>the maximum value of the breaks will be determined by the quantile given here. This can be used to deal with outlying values in <code>grd</code>. If <code>quantile = 1</code> then the maximum value of the breaks will be the same as the maximum value in <code>grd</code>.</dd> <dt>ncol</dt>
<dd>number of colours to be used, always one more than the number of breakpoints. Defaults to 12.</dd> <dt>zero</dt>
<dd>logical, should zero be included as a separate category? Defaults to <code>TRUE</code>.</dd></dl>

Arguments

Author

Define breakpoints for colour scales — breaks.grid

<dl>

 <dt>grd</dt>
<dd>an array produced by <code>make.grid</code> or a list produced by <code>make.multigrid</code> or a vector of positive values.</dd>

 <dt>quantile</dt>
<dd>the maximum value of the breaks will be determined by the quantile given here. This can be used to deal with outlying values in <code>grd</code>. If <code>quantile = 1</code> then the maximum value of the breaks will be the same as the maximum value in <code>grd</code>.</dd>

 <dt>ncol</dt>
<dd>number of colours to be used, always one more than the number of breakpoints. Defaults to 12.</dd>

 <dt>zero</dt>
<dd>logical, should zero be included as a separate category? Defaults to <code>TRUE</code>.</dd>

</dl>

breaks.grid: Define breakpoints for colour scales

Description

Usage

Value

Arguments

Author

See Also

Examples