Computes boundary for an object of class `"Fstats"`

```
# S3 method for Fstats
boundary(x, alpha = 0.05, pval = FALSE, aveF = FALSE,
asymptotic = FALSE, ...)
```

x

an object of class `"Fstats"`

.

alpha

numeric from interval (0,1) indicating the confidence level for which the boundary of the supF test will be computed.

pval

logical. If set to `TRUE`

a boundary for the corresponding p
values will be computed.

aveF

logical. If set to `TRUE`

the boundary of the aveF (instead of
the supF) test will be computed. The resulting boundary then is a boundary
for the mean of the F statistics rather than for the F statistics
themselves.

asymptotic

logical. If set to `TRUE`

the asymptotic (chi-square)
distribution instead of the exact (F) distribution will be used to compute
the p values (only if `pval`

is `TRUE`

).

...

currently not used.

an object of class `"ts"`

with the same time properties as
the time series in `x`

# NOT RUN { ## Load dataset "nhtemp" with average yearly temperatures in New Haven data("nhtemp") ## plot the data plot(nhtemp) ## test the model null hypothesis that the average temperature remains ## constant over the years for potential break points between 1941 ## (corresponds to from = 0.5) and 1962 (corresponds to to = 0.85) ## compute F statistics fs <- Fstats(nhtemp ~ 1, from = 0.5, to = 0.85) ## plot the p values without boundary plot(fs, pval = TRUE, alpha = 0.01) ## add the boundary in another colour lines(boundary(fs, pval = TRUE, alpha = 0.01), col = 2) # }