dlevy(y, m, s) plevy(q, m, s)
y
| vector of responses. |
q
| vector of quantiles. |
m
| vector of location parameters. |
s
| vector of dispersion parameters. |
m
and dispersion equal to
s
. dlevy
gives the density, plevy
gives
the distribution function.
The Levy distribution has density
f(y) = sqrt(s/(2 pi (y-m)^3)) exp(-s/(2 (y-m)))
where m is the location parameter of the distribution and s is the dispersion, and y>m.dnorm
for the normal distribution and
dcauchy
for the Cauchy distribution, two other stable
distributions.dlevy(5, 2, 1) plevy(5, 2, 1)