gamSim {mgcv} | R Documentation |

## Simulate example data for GAMs

### Description

Function used to simulate data sets to illustrate the use of
`gam`

and `gamm`

. Mostly used in help files to keep down
the length of the example code sections.

### Usage

`gamSim(eg=1,n=400,dist="normal",scale=2,verbose=TRUE)`

### Arguments

`eg` |
numeric value specifying the example required. |

`n` |
number of data to simulate. |

`dist` |
character string which may be used to specify the distribution of the response. |

`scale` |
Used to set noise level. |

`verbose` |
Should information about simulation type be printed? |

### Details

See the source code for exactly what is simulated in each case.

Gu and Wahba 4 univariate term example.

A smooth function of 2 variables.

Example with continuous by variable.

Example with factor by variable.

An additive example plus a factor variable.

Additive + random effect.

As 1 but with correlated covariates.

### Value

Depends on `eg`

, but usually a dataframe, which may also contain some information on
the underlying truth. Sometimes a list with more items, including a data frame for model fitting.
See source code or helpfile examples where the function is used for further information.

### Author(s)

Simon N. Wood simon.wood@r-project.org

### See Also

### Examples

```
## see ?gam
```

*mgcv*version 1.9-1 Index]