fincCytoband finds cytoband for a genome region specified by the chromosome,
region start and region end coordinates. It is used internally in DEMI analysis.
findCytoband(x, cytoband = "data.frame")vector. A vector of "chr", "start" and "end" information about the genome region.data.frame. A data.frame containing karyotype information.character corresponding to the input genomic region.