Q-Q Plots for Zoo Objects

Source: R/qqmath.zoo.R

Draw quantile-Quantile plots of a sample against a theoretical distribution, possibly conditioned on other variables.

# S3 method for zoo
qqmath(x, data = NULL, xlab = "Theoretical quantiles",
  ylab = "Sample quantiles", ref = TRUE, ci = TRUE, ...)

Arguments

x

A zoo object
data

Ignored
xlab

X axis label
ylab

Y axis label
ref

Plot a reference line via lattice::panel.qqmathline().
ci

Plot confidence levels via panel.qqmathci().
...

Parameters to pass on to lattice::qqmath().

Value

Plots and returns a trellis object.

See also

lattice::qqmath(), zoo::zoo(), lattice::panel.qqmathline().

Examples

if (require(zoo))
  qqmath(zoo(lh))
#> Loading required package: zoo
#> 
#> Attaching package: ‘zoo’
#> The following objects are masked from ‘package:base’:
#> 
#>     as.Date, as.Date.numeric