flowClust.den: generate the curve that reflects the tmixture fitting outcome
In flowClust: Clustering for Flow Cytometry

generate the curve that reflects the tmixture fitting outcome

1	flowClust.den(x, obj, subset, include)

`x`	the numeric vector represents the x coordinates in plot
`obj`	the flowClust object
`subset`	An integer indicating which variable is selected for the plot. Alternatively, a character string containing the name of the variable is allowed if `x@varNames` is not `NULL`.
`include`	A numeric vector specifying which clusters are shown on the plot. By default, all clusters are included.