# smovie

### Some Movies to Illustrate Concepts in Statistics

### What does smovie do?

The `smovie`

package provides movies to help students to understand statistical concepts. The `rpanel`

package is used to create interactive plots that move to illustrate key statistical ideas and methods. The movies cover the topics of probability distributions; sampling distributions of the mean (central limit theorem), the median, the maximum (extremal types theorem) and the (Fisher transformation of the) correlation coefficient; simple linear regression; hypothesis testing.

### An example

The function `wws`

produces a movie to visualise the Wald, Wilks and score likelihood-based test statistics, for a model with a scalar unknown parameter. The user can change the value of the parameter under a simple null hypothesis and observe the effect on the test statistics. The following code uses the log-likelihood from a binomial experiment and considers the null hypothesis that the success probability *θ* is equal to *θ*_{0}. The user may specify their own log-likelihood.

### Installation

To get the current released version from CRAN:

`install.packages("smovie")`

Note that `rpanel`

requires the Tcl extension `BWidget`

. `BWidget`

is included in the R installers for Windows and macOS. For other platforms please see Section 1.1.7 of Writing R Extensions for installation advice.

### Vignettes

See `vignette("smovie-vignette", package = "smovie")`

for an overview of the package.