r - how draw ellipses on a scatterplot3d -
i have following data frame:
cost quality safety time status 1 13 6 3 4 benchmark 2 10 4 5 10 benchmark 3 8 9 3 9 benchmark 4 7 8 9 9 benchmark 5 4 4 4 2 current 6 2 2 7 11 current
i want create benchmark space interms of scatter plot. used scatterplot3d package draw it.
scatterplot code:
scatterplot3d(f$cost,f$quality,f$safety,f$time,f$status)
i got below graph, want draw ellipses benchmarks confidence level of .975.so found dataellips in car package not know how apply function in scatterplot3d. graph want following:
i have tried code below, not work;
scatterplot3d(dataellipse(f$cost,f$quality,levels=0.68),f$safety,f$time,f$status)
because function of dataellips coming car package. error message following:
error in xyz.coords(x = x, y = y, z = z, xlab = xlabel, ylab = ylabel, : 'x', 'y' , 'z' lengths differ
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