dgamma(x, shape, scale=1) pgamma(q, shape, scale=1) qgamma(p, shape, scale=1) rgamma(n, shape, scale=1)
x,q
| vector of quantiles. |
p
| vector of probabilites. |
n
| number of observations. |
shape, scale
| shape and scale parameters. |
shape and scale.
dgamma gives the density,
pgamma gives the distribution function
qgamma gives the quantile function
and
rgamma generates random deviates.
The gamma distribution with parameters shape = a and
scale = b has density
f(x) = 1/(b^a Gamma(a)) x^(a-1) e^-(x/b)
gamma.