vgm {gstat} | R Documentation |
Generates a variogram model, or adds to an existing model.
print.variogram.model
prints the essence of a variogram model.
vgm(psill, model, range, nugget, add.to, anis, kappa = 0.5) print.variogram.model(x, ...)
psill |
(partial) sill of the variogram model component |
model |
model type, e.g. "Exp", "Sph", "Gau", "Mat". Calling vgm() without a model argument returns the list with available models. |
range |
range of the variogram model component |
kappa |
smoothness parameter for the Matern class of variogram models |
nugget |
nugget component of the variogram (this basically adds a nugget compontent to the model) |
add.to |
a variogram model to which we want to add a component |
anis |
anisotropy parameters: |
x |
a variogram model to print |
... |
arguments that will be passed to print , e.g. digits
(see examples) |
an object of class variogram.model, which extends data.frame Calling
vgm
without a model argument returns the list with available models.
Edzer J. Pebesma
print.variogram.model, fit.variogram, variogram.line, variogram for the sample variogram.
vgm(10, "Exp", 300) x <- vgm(10, "Exp", 300) vgm(10, "Nug", 0) vgm(10, "Exp", 300, 4.5) vgm(10, "Mat", 300, 4.5, kappa = 0.7) vgm( 5, "Exp", 300, add.to = vgm(5, "Exp", 60, nugget = 2.5)) vgm(10, "Exp", 300, anis = c(30, 0.5)) vgm(10, "Exp", 300, anis = c(30, 10, 0, 0.5, 0.3)) # Matern variogram model: vgm(1, "Mat", 1, kappa=.3) x <- vgm(0.39527463, "Sph", 953.8942, nugget = 0.06105141) x print(x, digits = 3); # to see all components, do print.data.frame(x)