normal_pdf_movie: Normal p.d.f. movie

In paulnorthrop/stat1004: stat1004: Introduction to Probability and Statistics at UCL

Description

A movie to show how the probability density function (p.d.f.) of the normal distribution varies as the mean and/or variance of the distribution are changed.

Usage

normal_pdf_movie(starting_mean = 0, starting_var = 1,
  delta_mean = 0.1, delta_var = 0.1)

Arguments

starting_mean	A numeric scalar. The value of the mean used to produce the first plot of the p.d.f.
starting_var	A positive numeric scalar. The value of the variance used to produce the first plot of the p.d.f.
delta_mean	A numeric scalar. The amount by which the value of the mean is increased/decreased after one click of the +/- button for the mean.
delta_var	A numeric scalar. The amount by which the value of the variance is increased/decreased after one click of the +/- button for the variance.

Details

The values of the mean and/or variance can be changed using the +/- buttons in the panel. For the purposes of this movie, the variance cannot be reduced below a value of 0.1.

Value

Nothing is returned, only the animation is produced.

See Also

movies: general information about the movies.

normal_areas_movie: normal central probability areas movie.

Examples

# Load package rpanel
# [Use install.packages("rpanel") if necessary]
library(rpanel)

# Produce movie using values from the Aussie births data
## Not run: 
normal_pdf_movie()
normal_pdf_movie(delta_var = 1)

## End(Not run)

paulnorthrop/stat1004 documentation built on Nov. 17, 2019, 3:49 a.m.