plot.lisa: Plots local indicators of spatial association
Description
`plot' method for class "lisa".
Usage
## S3 method for class 'lisa':
plot(x, negh.mean = FALSE, \dots)
Arguments
x
an object of class "lisa", ususally, as a result of
a call to lisa.
negh.mean
if TRUE size of symbols represents average observation
in each neighborhood, if FALSE size of symbols represents the original
observation
...
other arguments
Value
A bubble-plot of observations against spatial coordinates is produced.
Below mean values are signified by squares.
Above mean values are signified by squares.
If a permutation test was performed, observations for which the associated LISA
statistic is positive and significant at a nominal
(two-sided) 5%-level will be respresented by filled symbols and non-significant
values by open symbols. Thus spatial hot-spots are represented by red filled circles and
cold-spots by black filled squares.