# collapse

0th

Percentile

##### Collapse According to Groups

This function is generic; method functions can be written to handle specific classes of objects. Currently, only a groupedData method is available.

Keywords
models
##### Usage
collapse(object, ...)
##### Arguments
object
an object to be collapsed, usually a data frame.
...
some methods for the generic may require additional arguments.
##### Value

• will depend on the method function used; see the appropriate documentation.

collapse.groupedData
library(nlme) ## see the method function documentation