Set formatting of gTrack object gt

usage: #gt is a gTrack object formatting(td)$height <- 2

#can also just use $ directly, like for a data frame, which is more convenient td$height <- 2

formatting(.Object) <- value

# S4 method for gTrack
formatting(.Object) <- value

Arguments

.Object

gTrack to set the formatting field for

value

data.frame with the new formatting information