This function is similar to base::load(), but also initializes the
different types of objects that the @geno slot of a '>BGData object
can take. Currently supported are ff_matrix,
bigmemory::big.matrix, and BEDMatrix::BEDMatrix objects. If
the object is of type LinkedMatrix::LinkedMatrix, all nodes will be
initialized with their appropriate method.
load.BGData(file, envir = parent.frame())The name of the .RData file to be loaded.
The environment where to load the data.