`coef()`

extracts model coefficients (see`stats::coef()`

).`fitted()`

extracts model fitted values (see`stats::fitted()`

).`residuals()`

extracts model residuals (see`stats::residuals()`

).`sigma()`

extracts the residual standard deviation (see`stats::sigma()`

).`terms()`

extracts model terms (see`stats::terms()`

).

## Usage

```
# S4 method for class 'EventDate'
coef(object, calendar = NULL, ...)
# S4 method for class 'EventDate'
fitted(object, calendar = NULL, ...)
# S4 method for class 'EventDate'
residuals(object, calendar = NULL, ...)
# S4 method for class 'EventDate'
sigma(object, calendar = NULL, ...)
# S4 method for class 'EventDate'
terms(x, ...)
```

## Arguments

- calendar
An

`aion::TimeScale`

object specifying the target calendar (see`calendar()`

). If`NULL`

(the default),*rata die*are returned.- ...
Currently not used.

- x, object
An

`EventDate`

object.

## See also

Other mutators:
`data.frame`

,
`mutators`

,
`series()`

,
`subset()`

## Examples

```
## Data from Peeples and Schachner 2012
data("zuni", package = "folio")
## Assume that some assemblages are reliably dated (this is NOT a real example)
zuni_dates <- c(
LZ0569 = 1097, LZ0279 = 1119, CS16 = 1328, LZ0066 = 1111,
LZ0852 = 1216, LZ1209 = 1251, CS144 = 1262, LZ0563 = 1206,
LZ0329 = 1076, LZ0005Q = 859, LZ0322 = 1109, LZ0067 = 863,
LZ0578 = 1180, LZ0227 = 1104, LZ0610 = 1074
)
## Model the event and accumulation date for each assemblage
model <- event(zuni, zuni_dates, rank = 10)
plot(model, select = 1:10, event = TRUE, flip = TRUE)
```