MKDim: Determine Signal Space Dimension

#' @title IPF Single Cell Altas data
#'
#' @description The lung data is a subset of patient "001C" profiled in IPF
#' Single Cell Altas. The full data seet can be found on GEO (GSE136831),
#' which was examined  by
#' \href{https://www.biorxiv.org/content/10.1101/759902v1.full.pdf}
#' {https://www.biorxiv.org/content/10.1101/759902v1.full.pdf}
#' to build a single cell atlas of Idiopathic Pulmonary Fibrosis (IPF).
#' It contains the gene expression of 312,928 cells profiled
#' from 32 IPF patient lung samples, 18 chronic obstructive pulmonary
#' disease (COPD) lung samples and 28 control donor lung samples.
#' (Adamset al.2019).
#' @docType data
#' @name lung
#' @rdname lung
#' @usage data(lung)
#' @format An object of class Seurat.
#' @keywords datasets
#' @references Adamset  al.(2019),
#' (\href{https://www.biorxiv.org/content/10.1101/759902v1.full.pdf}
#' {https://www.biorxiv.org/content/10.1101/759902v1.full.pdf})
#' @source \href{https://www.biorxiv.org/content/10.1101/759902v1.full.pdf}
#' {https://www.biorxiv.org/content/10.1101/759902v1.full.pdf}
#' @examples
#' \dontrun{
#' data(lung)
#' }
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