This function performs a symbol plot to help in identifying
any spatial trends
Usage
symbolplot(data, coord, which = "gev", plot.border = NULL,
col = c("#FF000080", "#0000FF80"), plot.legend = TRUE, scale = 1)
Arguments
data
A matrix representing the data. Each column corresponds to
one location.
coord
A matrix that gives the coordinates of each
location. Each row corresponds to one location.
which
A character string specifying which values should be
plotted. Must be one of "gev" (for the GEV marginal parameters),
"mean" for pointwise mean or "median" for pointwise median.
plot.border
An R function that plots the border of the study
region. If NULL (default) no border is plotted.
col
A vector of length 2 giving the colors to be used to fill
the circles.
plot.legend
Logical. If TRUE (default), a legend is
added to the plot.
scale
Positive number. It enables to enlarge (if scale > 1) or
reduce (if 0 < scale < 1) the radius of the plotted circles to get a
better display.
Value
A plot.
Details
This function will plot several circles whose center is located at the
weather stations and whose radius is proportional to the departure of
the value at that position to the areal mean value.