anm.samp.design {asbio} | R Documentation |

## Animated demonstration of randomized sampling designs

### Description

Animated Comparisons of outcomes from simple random sampling, stratified random sampling and cluster sampling.

### Usage

```
anm.samp.design(n=20, interval = 0.5 ,iter = 30, main = "", lwd = 2, lcol = 2)
samp.design(n = 20, main = "", lwd = 2, lcol = 2)
anm.samp.design.tck()
```

### Arguments

`n` |
The number of samples to be randomly selected from a population of 400. |

`interval` |
Time length spent on each frame in animation (in seconds). |

`iter` |
Number of random iterations in animation. |

`main` |
Main heading. |

`lwd` |
Line width to distinguish strata in stratified and cluster designs. |

`lcol` |
Line width to distinguish strata in stratified and cluster designs. |

### Details

Returns a plot comparing outcomes of random sampling, stratified random sampling and cluster sampling from a population
of size 400. For stratified random sampling the population is subdivided into four equally strata of size 100.
and `n`

/4 samples are taken within each strata. For cluster sampling the population is subdivided into four
equally sized clusters and a census is taken from two clusters (regardless of specification of `n`

). The function `anm.samp.design`

depicts random sampling using animation

### Value

A plot is returned with four subplots. (a) shows the population before sampling, (b) shows simple random sampling, (c) shows stratified random sampling, (d) shows cluster sampling. The function `anm.samp.design.tck`

provides interaction with a tcltk GUI.

### Author(s)

Ken Aho

### Examples

```
samp.design(20)
#Animated demonstration
## Not run: anm.samp.design(20)
```

*asbio*version 1.9-7 Index]