dummy {BETS} | R Documentation |

## Create a monthly or quarterly dummy

### Description

Returns a monthly or quarterly dummy (a time series with only 0s and 1s).

### Usage

```
dummy(start = NULL, end = NULL, frequency = 12, year = NULL,
month = NULL, quarter = NULL, date = NULL, from = NULL, to = NULL)
```

### Arguments

`start` |
An |

`end` |
An |

`frequency` |
An |

`year` |
An |

`month` |
An |

`quarter` |
An |

`date` |
a |

`from` |
An |

`to` |
The ending period of a sequence of perids for which the dummy must be set to one. Periods must be represented as integer vectors, as described for |

### Value

A monthly or a quarterly `ts`

object.

### See Also

### Examples

```
#1 from a specific date to another specific date
dummy(start = c(2000,1),end = c(2012,5),frequency = 12,from = c(2005,1),to = c(2006,12))
#Other options that may be helpful:
#over a month equal to 1
dummy(start = c(2000,1), end = c(2012,5), frequency = 12, month = c(5,12))
#Months equal to 1 only for some year
dummy(start = c(2000,1), end = c(2012,5), frequency = 12, month = 5, year = 2010)
dummy(start = c(2000,1), end = c(2012,5), frequency = 12, month = 8, year = 2002)
#Months equal to 1 only for some years
dummy(start = c(2000,1), end = c(2012,5), frequency = 12, month = 5, year = 2005:2007)
dummy(start = c(2000,1), end = c(2012,5), frequency = 12, month = 3, year = c(2005,2007))
dummy(start = c(2000,1), end = c(2012,5), frequency = 12, month = 5:6, year = c(2005,2007))
#specific dates
dummy(start = c(2000,1), end = c(2012,5), frequency = 12, date = list(c(2010,1)))
dummy(start = c(2000,1), end = c(2012,5),
freq = 12, date = list(c(2010,9), c(2011,1), c(2000,1)) )
```

*BETS*version 0.4.9 Index]