# emend

0th

Percentile

##### Force Model to be Valid

Check whether a model is valid, and if not, find the nearest model which is valid.

Keywords
models, spatial
##### Usage
emend(object, …)
##### Arguments
object

A statistical model, belonging to some class.

Arguments passed to methods.

##### Details

The function emend is generic, and has methods for several classes of statistical models in the spatstat package (mostly point process models). Its purpose is to check whether a given model is valid (for example, that none of the model parameters are NA) and, if not, to find the nearest model which is valid.

##### Value

Another model of the same kind.

emend.ppm, emend.lppm, valid.