phyC: Clustering cancer evolutional trees

#' cell renal cell carcinomas (ccRCC) dataset
#' 
#' Dataset of cell renal cell carcinomas (ccRCC) (Gerlinger et al. 2014) from the multiregional sequencing variant allele frequency. 
#' The data set contain 8 patients VAFs.
#' 
#'
#' @name ccRCC
#' @docType data
#' @format A list of 8 VAF matrices
#' @section Variables:
#' Variables:
#' \itemize{
#' \item chrom The number of chromosome
#' \item pos Genomic position
#' \item DESC Description of the position such as the gene symbol.
#' \item normal The VAF of the normal cells.
#' \item Other columns Each column indicates the VAF of each region
#' }
#' @author Yusuke Matsui & Teppei Shimamura
#' @references Gerlinger,M. et al. (2014) Genomic architecture and evolution of clear cell renal cell carcinomas defined by multiregion sequencing. Nat. Genet., 46, 225–233.
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