Class representing a Next Generation Clustered Heat Map (NGCHM) under construction.
Source:R/allClasses.R
ngchm-class.RdAn NG-CHM is produced by creating a heat map object with chmNew(), possibly modifying or augmenting it
using additional functions, such as chmAddLayer(), chmAddCovariateBar(), etc., and then
either saving it to a server using chmInstall() or saving it to a standalone file using chmExportToFile().