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Question: Why doesn't discont=true work in this case?

Question:Why doesn't discont=true work in this case?

DJJerome1976 540 Maple 15
plot statistics piecewise probability
October 02 2011
3

I am trying to plot the cdf of a binomial random variable, which has jump discontinuities at each of the integers with positive probability mass. Typically, when plotting a piecewise function, one would prefer not to have Maple connect all the points of discontinuity with a vertical line, and discont=true achieves that. Why doesn't the following command yield the expected results:

with(Statistics):

with(plots):

X:=RandomVariable(Binomial(25,.65)):

F:=x->CDF(X,x):

plot(F(x),x=-1..27,y=0..0.5,gridlines=true,discont=true)

 

The plot I get still has vertical lines connecting the jump discontinuities.

 

Any ideas/help will be greatly appreciated, thanks!
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