# qqplot

##### Methods for Function qqplot in Package `RobAStBase'

We generalize function `qqplot`

from package `qqplot`

produces a QQ plot of data (argument `x`

) against
a (model) distribution. For arguments `y`

of class `RobModel`

,
points at a high `y`

of class `kStepEstimate`

,
points at with low weight in the [p]IC are plotted bigger and their
color gets faded out slowly.
Graphical parameters may be given as arguments to `qqplot`

.

- Keywords
- hplot, distribution

##### Usage

```
qqplot(x, y, ...)
## S3 method for class 'ANY,RobModel':
qqplot(x, y,
n = length(x), withIdLine = TRUE, withConf = TRUE,
withConf.pw = withConf, withConf.sim = withConf,
plot.it = TRUE, xlab = deparse(substitute(x)),
ylab = deparse(substitute(y)), ..., distance = NormType(),
n.adj = TRUE)
## S3 method for class 'ANY,InfRobModel':
qqplot(x, y,
n = length(x), withIdLine = TRUE, withConf = TRUE,
withConf.pw = withConf, withConf.sim = withConf,
plot.it = TRUE, xlab = deparse(substitute(x)),
ylab = deparse(substitute(y)), ..., n.adj = TRUE)
## S3 method for class 'ANY,kStepEstimate':
qqplot(x, y,
n = length(x), withIdLine = TRUE, withConf = TRUE,
withConf.pw = withConf, withConf.sim = withConf,
plot.it = TRUE, xlab = deparse(substitute(x)),
ylab = deparse(substitute(y)), ...,
exp.cex2.lbl = -.15,
exp.cex2.pch = -.35,
exp.fadcol.lbl = 1.85,
exp.fadcol.pch = 1.85,
bg = "white")
```

##### Details

[object Object],[object Object],[object Object]

##### Value

As for function `qqplot`

from package *including NAs*.

##### docType

methods

##### References

Becker, R. A., Chambers, J. M. and Wilks, A. R. (1988)
*The New S Language*.
Wadsworth & Brooks/Cole.

##### See Also

`qqplot`

from package `qqplot`

from package `qqplot`

from package `qqbounds`

, used by `qqplot`

to produce confidence
intervals.

##### Examples

```
qqplot(r(Norm(15,sqrt(30)))(40), Chisq(df=15))
RobM <- InfRobModel(center = NormLocationFamily(mean=13,sd=sqrt(28)),
neighbor = ContNeighborhood(radius = 0.4))
x <- r(Norm(15,sqrt(30)))(20)
qqplot(x, RobM)
## further examples for ANY,kStepEstimator-method
## in example to roptest() in package ROptEst
```

*Documentation reproduced from package RobAStBase, version 0.7.1, License: LGPL-3*