scree.boot: Generate a Screeplot with Bias Corrected Bootstrap Confidence...
In abnormally-distributed/cvreg: Cross Validation and Robust Estimation Utilities

Generate a Screeplot with Bias Corrected Bootstrap Confidence Intervals

scree.boot(
  data,
  level = 0.95,
  nsamp = 500,
  method = c("cor", "cov"),
  parallel = TRUE,
  ncores = 3
)

`data`	a data frame or matrix of numeric variables
`level`	the confidence level. defaults to 0.95.
`nsamp`	number of bootstrap samples. defaults to 500.
`method`	should the eigenvalues come from the correlation or covariance matrix? one of "cor" (the default) or "cov"
`parallel`	whether multiple cores should be used for the boostrap analysis. defaults to TRUE.
`ncores`	the number of cores to utilize for parallel processing. defaults to 3.