Calculate Depth
Calculates the depth of points w.r.t. a multivariate data set.
The detailed descriptions are found in the corresponding topics.
depth.(x, data, notion, ...) ## beta-skeleton depth # depth.betaSkeleton(x, data, beta = 2, distance = "Lp", Lp.p = 2, # mah.estimate = "moment", mah.parMcd = 0.75) ## Tukey depth # depth.halfspace(x, data, exact, method, num.directions = 1000, seed = 0) ## L2-depth # depth.L2(x, data, mah.estimate = "moment", mah.parMcd = 0.75) ## Mahalanobis depth # depth.Mahalanobis(x, data, mah.estimate = "moment", mah.parMcd = 0.75) ## projection depth # depth.projection(x, data, method = "random", num.directions = 1000) ## simplicial depth # depth.simplicial(x, data, exact = F, k = 0.05, seed = 0) ## simplicial volume depth # depth.simplicialVolume(x, data, exact = F, k = 0.05, seed = 0) ## spatial depth # depth.spatial(x, data) ## zonoid depth # depth.zonoid(x, data) ## potential # depth.potential (x, data, pretransform = "1Mom", # kernel = "GKernel", kernel.bandwidth = NULL, mah.parMcd = 0.75) ## convex hull peeling depth # depth.qhpeeling(x, data)
x |
Matrix of objects (numerical vector as one object) whose depth is to be calculated; each row contains a d-variate point. Should have the same dimension as |
data |
Matrix of data where each row contains a d-variate point, w.r.t. which the depth is to be calculated. |
notion |
The name of the depth notion (shall also work with a user-defined depth function named |
... |
Additional parameters passed to the depth functions. |
Numerical vector of depths, one for each row in x; or one depth value if x is a numerical vector.
depth.graph for building the depth surfaces of the two dimensional data.
# 5-dimensional normal distribution
data <- mvrnorm(1000, rep(0, 5),
matrix(c(1, 0, 0, 0, 0,
0, 2, 0, 0, 0,
0, 0, 3, 0, 0,
0, 0, 0, 2, 0,
0, 0, 0, 0, 1),
nrow = 5))
x <- mvrnorm(10, rep(1, 5),
matrix(c(1, 0, 0, 0, 0,
0, 1, 0, 0, 0,
0, 0, 1, 0, 0,
0, 0, 0, 1, 0,
0, 0, 0, 0, 1),
nrow = 5))
depths <- depth.(x, data, notion = "zonoid")
cat("Depths: ", depths, "\n")Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.