fpc (version 2.2-9)

# clusexpect: Expected value of the number of times a fixed point cluster is found

## Description

A rough approximation of the expectation of the number of times a well separated fixed point cluster (FPC) of size `n` is found in `ir` fixed point iterations of `fixreg`.

## Usage

`clusexpect(n, p, cn, ir)`

## Arguments

n

positive integer. Total number of points.

p

positive integer. Number of independent variables.

cn

positive integer smaller or equal to `n`. Size of the FPC.

ir

positive integer. Number of fixed point iterations.

A number.

## Details

The approximation is based on the assumption that a well separated FPC is found iff all `p+2` points of the initial coinfiguration come from the FPC. The value is `ir` times the probability for this. For a discussion of this assumption cf. Hennig (2002).

## References

Hennig, C. (2002) Fixed point clusters for linear regression: computation and comparison, Journal of Classification 19, 249-276.

`fixreg`
```# NOT RUN {