fBasics: plot-qqPlot – R documentation

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plot-qqPlot

Quantile-Quantile Plots

Description

Returns quantile-quantile plots for the normal, the normal inverse Gaussian, the generalized hyperbolic Student-t and the generalized lambda distribution.

List of Functions:

`qqnormPlot`	Returns a tailored Normal quantile-quantile plot,
`qqnigPlot`	Returns a tailored NIG quantile-quantile plot,
`qqghtPlot`	Returns a tailored GHT quantile-quantile plot,
`qqgldPlot`	Returns a tailored GLD quantile-quantile plot.

Usage

qqnormPlot(x, labels = TRUE, col = "steelblue", pch = 19,
    title = TRUE, mtext = TRUE, grid = FALSE, rug = TRUE, 
    scale = TRUE, ...) 
qqnigPlot(x, labels = TRUE, col = "steelblue", pch = 19,
    title = TRUE, mtext = TRUE, grid = FALSE, rug = TRUE, 
    scale = TRUE, ...) 
qqghtPlot(x, labels = TRUE, col = "steelblue", pch = 19,
    title = TRUE, mtext = TRUE, grid = FALSE, rug = TRUE, 
    scale = TRUE, ...) 
qqgldPlot(x, labels = TRUE, col = "steelblue", pch = 19,
    title = TRUE, mtext = TRUE, grid = FALSE, rug = TRUE, 
    scale = TRUE, ...)

Arguments

`x`	an object of class `"timeSeries"` or any other object which can be transformed by the function `as.timeSeries` into an object of class `timeSeries`. The latter case, other then `timeSeries` objects, is more or less untested.
`labels`	a logical flag, should the plot be returned with default labels and decorated in an automated way? By default `TRUE`.
`col`	the color for the series. In the univariate case use just a color name like the default, `col="steelblue"`, in the multivariate case we recommend to select the colors from a color palette, e.g. `col=heat.colors(ncol(x))`.
`pch`	an integer value, by default 19. Which plot character should be used in the plot?
`title`	a logical flag, by default TRUE. Should a default title added to the plot?
`mtext`	a logical flag, by default TRUE. Should a marginal text be printed on the third site of the graph?
`grid`	a logical flag, should a grid be added to the plot? By default `TRUE`. To plot a horizontal lines only use `grid="h"` and for vertical lines use `grid="h"`, respectively.
`rug`	a logical flag, by default TRUE. Should a rug representation of the data added to the plot?
`scale`	a logical flag, by default TRUE. Should the time series be scaled for the investigation?
`...`	optional arguments to be passed.

Value

displays a quantile-quantile plot.

Author(s)

Diethelm Wuertz for the Rmetrics R-port.

Examples

## data - 
   SPI <- LPP2005REC[, "SPI"]
   plot(SPI, type = "l", col = "steelblue", main = "SP500")
   abline(h = 0, col = "grey")
   
## qqPlot -
   qqnormPlot(SPI)

fBasics

Rmetrics - Markets and Basic Statistics

v3042.89.1

GPL (>= 2)

Authors

Diethelm Wuertz [aut], Tobias Setz [cre], Yohan Chalabi [ctb] Martin Maechler [ctb]

Initial release

2017-11-12