# breakdates

##### Breakdates Corresponding to Breakpoints

A generic function for computing the breakdates corresponding to breakpoints (and their confidence intervals).

- Keywords
- regression

##### Usage

`breakdates(obj, format.times = FALSE, ...)`

##### Arguments

- obj
An object of class

`"breakpoints"`

,`"breakpointsfull"`

or their confidence intervals as returned by`confint`

.- format.times
logical. If set to

`TRUE`

a vector of strings with the formatted breakdates. See details for more information.- …
currently not used.

##### Details

Breakpoints are the number of observations that are the last in one
segment and breakdates are the corresponding points on the underlying
time scale. The breakdates can be formatted which enhances readability
in particular for quarterly or monthly time series. For example the
breakdate `2002.75`

of a monthly time series will be formatted to
`"2002(10)"`

.

##### Value

A vector or matrix containing the breakdates.

##### See Also

##### Examples

```
# NOT RUN {
## Nile data with one breakpoint: the annual flows drop in 1898
## because the first Ashwan dam was built
data("Nile")
plot(Nile)
bp.nile <- breakpoints(Nile ~ 1)
summary(bp.nile)
plot(bp.nile)
## compute breakdates corresponding to the
## breakpoints of minimum BIC segmentation
breakdates(bp.nile)
## confidence intervals
ci.nile <- confint(bp.nile)
breakdates(ci.nile)
ci.nile
plot(Nile)
lines(ci.nile)
# }
```

*Documentation reproduced from package strucchange, version 1.5-1, License: GPL-2 | GPL-3*