graph_eigenvalues {dann}

A helper for sub_dann

Description

A helper for sub_dann

Usage

graph_eigenvalues(
  x,
  ...,
  neighborhood_size = max(floor(nrow(x)/5), 50),
  weighted = FALSE,
  sphere = "mcd"
)

Arguments

x

A matrix or a dataframe.

...

Additional parameters passed to methods.

neighborhood_size

The number of data points used to calculate between and within class covariance.

weighted

weighted argument to ncoord. See fpc::ncoord() for details.

sphere

One of "mcd", "mve", "classical", or "none" See fpc::ncoord() for details.

Details

This function plots the eigenvalues found by fpc::ncoord(). The user should make a judgement call on how many eigenvalues are large and set sub_dann's numDim to that number.

Value

A ggplot2 graph.