wmppp.object {dbmss} | R Documentation |
A class "wmppp"
to represent a two-dimensional point pattern of class ppp
whose marks are a dataframe with two columns:
PointType
: labels, as factors
PointWeight
: weights.
This class represents a two-dimensional point pattern dataset. wmppp
objects are also of class ppp
.
Objects of class wmppp
may be created by the function wmppp
and converted from other types of data by the function as.wmppp
.
ppp.object
,
wmppp
,
as.wmppp
autoplot.wmppp
# Draw the coordinates of 10 points
X <- runif(10)
Y <- runif(10)
# Draw the point types and weights
PointType <- sample(c("A", "B"), 10, replace=TRUE)
PointWeight <- runif(10)
# Build the point pattern
X <- wmppp(data.frame(X, Y, PointType, PointWeight), owin())
# Plot the point pattern. which.marks=1 for point weights, 2 for point types
par(mfrow=c(1,2))
plot(X, which.marks=1, main="Point weights")
plot(X, which.marks=2, main="Point types")
# Or use autoplot for a ggplot
autoplot(X)