estimate_mindml: MINDml

In kisungyou/Rdimtools: Dimension Reduction and Estimation Methods

MINDml

Description

It is a minimum neighbor distance estimator of the intrinsic dimension based on Maximum Likelihood principle.

Usage

est.mindml(X, k = 5)

Arguments

X	an (n\times p) matrix or data frame whose rows are observations.
k	the neighborhood size for defining locality.

Value

a named list containing containing

estdim

the global estimated dimension.

Author(s)

Kisung You

References

\insertRef

lombardi_minimum_2011Rdimtools

See Also

est.mindkl

Examples

## create 3 datasets of intrinsic dimension 2.
set.seed(100)
X1 = aux.gensamples(dname="swiss")
X2 = aux.gensamples(dname="ribbon")
X3 = aux.gensamples(dname="saddle")

## acquire an estimate for intrinsic dimension
out1 = est.mindml(X1, k=10)
out2 = est.mindml(X2, k=10)
out3 = est.mindml(X3, k=10)

## print the results
line1 = paste0("* est.mindml : 'swiss'  estiamte is ",round(out1$estdim,2))
line2 = paste0("* est.mindml : 'ribbon' estiamte is ",round(out2$estdim,2))
line3 = paste0("* est.mindml : 'saddle' estiamte is ",round(out3$estdim,2))
cat(paste0(line1,"\n",line2,"\n",line3))

kisungyou/Rdimtools documentation built on Jan. 2, 2023, 9:55 a.m.