Difference between revisions of "Beta distributions"
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x <- rbeta(n, shape1= p, shape2=q) | x <- rbeta(n, shape1= p, shape2=q) | ||
breaks <- seq(0,1, length=21) | breaks <- seq(0,1, length=21) | ||
| − | hist(x, breaks=breaks) | + | hist(x, breaks=breaks, freq=FALSE) |
| + | lines(density(x, adjust=0.3), col="red") | ||
</table> | </table> | ||
| + | |||
==See also== | ==See also== | ||
[[BetaDistributions.R]] | [[BetaDistributions.R]] | ||
[[Category:R]] | [[Category:R]] | ||
Revision as of 03:18, 2 August 2006
Beta distributions
For details on the beta distribution see WikiPedia:Beta distribution.
R programming language
For help on functions which create/manipulate beta distributions see;
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?beta # or help(beta) ?rbeta # or help(rbeta) |
Usage examples are provided at;
example(beta) example(rbeta) example(dbeta) example(pbeta) example(qbeta) |
Lets generate a beta distribution using the rbeta built in R function.
# Alter the parameters n <- 1000 # Number of observations p <- 0.1 q <- 0.1 x <- rbeta(n, shape1= p, shape2=q) breaks <- seq(0,1, length=21) hist(x, breaks=breaks, freq=FALSE) lines(density(x, adjust=0.3), col="red") |
