rknn (version 1.2-1)

r: Choose number of KNNs

Description

Choose number of KNNs

Usage

r(p, m = floor(sqrt(p)), eta = 0.99, nu = 20, rmax = p, nsim = 1000, lambda = 0.01, method = c("binomial", "poisson", "nu", "geo.independent", "geo.sim", "geo.dependent", "lambda"))

Arguments

p
Total number of available features.
m
Number of features to be drawn by each KNN.
eta
Coverage Probability.
nu
mean mutiplicity of a feature
rmax
number of series terms for independent geometric approximation
nsim
number of simulations for geometric simulation.
lambda
mean number of silient features.
method
one of binomial, poisson, nu, geo.independent, geo.sim, geo.dependent, lambda

Value

An integer.

Details

Method binomial and poisson are approximation method for a given eta value. Method nu computes r for a given nu. Method geo.independent, geo.sim and geo.dependent compute r using geomerical random variables z until eachh is at least drawn once. The difference is that geo.independent ignores dependency,geo.sim is a simulation method and geo.independent is an exact method using gmp package. Method lambda computes r for a given lambda.

Examples

  r(100, 10);