seg (version 0.4-1)

SegLocal-class: Class SegLocal

Description

A class to hold the local population composition data.

Objects from the Class

Objects can be created by calls to localenv, or the constructor SegLocal.

See Also

SegLocal, localenv

Examples

# creates 100 regularly-spaced data points and 3 population groups
xy <- expand.grid(1:10, 1:10)
colnames(xy) <- c("x", "y")
pop <- matrix(runif(300), ncol = 3)
colnames(pop) <- LETTERS[1:3]

# constructs an object of class 'SegLocal'
v <- SegLocal(coords = as.matrix(xy), data = pop, env = pop)
summary(v)

# updates the map projection information
v <- update(v, proj4string = CRS("+proj=nzmg +datum=nzgd49"))
summary(v)

# displays the (randomly-generated) local population data
par(mfrow = c(1, 3))
plot(v, main = paste("Data", colnames(pop)), xlab = "x", ylab = "y")
par(mfrow = c(1, 1))

# coverts the object to class 'Spatial'
plot(as(v, "SpatialPoints"))
spplot(v, col.regions = heat.colors(20))
v.sp <- as(v, "SpatialPixelsDataFrame")
is(v.sp)