Artificial Data Set based on Auckland's Maunga Whau Volcano

This function creates a data set based on the volcano data by adding normal errors to the topographic information.

Volcano(sd = 0.3)

Arguments

sd	The standard deviation of the normal errors.

Value

A data frame with coordinates and noisy elevation.

See also

volcano

Examples

d <- Volcano()
head(d)
#>         lon      lat           y
#> 1 -36.87764 174.7647  0.15656372
#> 2 -36.87764 174.7647  0.28486562
#> 3 -36.87763 174.7647 -0.20451545
#> 4 -36.87763 174.7647 -0.20972844
#> 5 -36.87762 174.7647  0.71648347
#> 6 -36.87762 174.7647 -0.09304756

# NOT RUN {
b <- bamlss(y ~ te(lon,lat,k=10), data = d)
plot(b, theta = -130)
# }