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The Geometric Distribution
Syntax
dgeom(x, p)
pgeom(q, p)
qgeom(p, p)
rgeom(n, p)
Value
These functions provide information about the geometric distribution
with parameter p. dgeom gives the density, pgeom
gives the distribution function qgeom gives the quantile
function and rgeom generates random deviates.
The geometric distribution has density
p(x) = p (1-p)^x,
((Equations will(?) come with HTML 3.x ))
for x = 0, 1, 2, ...
Examples
<![CDATA[pp <- sort(c((1:9)/10, 1 - .2^(2:8)))
print(qg <- qgeom(pp, p = .2))
for(i in 1:2) print(qg _ qgeom(pgeom(qg,p=.2), p=.2))
Ni <- rgeom(20, p= 1/4); table(factor(Ni, 0:max(Ni)))
]]>