spind (version 2.1.3)

covar.plot: Plot wavelet variance/covariance

Description

Plots the wavelet variance or covariance for the specified formula. The scale-dependent results are graphically displayed.

Usage

covar.plot(formula, data, coord, wavelet = "haar", wtrafo = "dwt",
  plot = "covar", customize_plot = NULL)

Arguments

formula

With specified notation according to names in data frame.

data

Data frame.

coord

A matrix of 2 columns with corresponding x,y-coordinates which have to be integer.

wavelet

Type of wavelet: haar, d4, or la8.

wtrafo

Type of wavelet transform: dwt or modwt.

plot

Either var for wavelet variance analysis or covar for wavelet covariance analysis.

customize_plot

Additional plotting parameters passed to ggplot

Value

A list containing a vector of results.

Details

Each variable or pair of variables in formula is passed to wavevar or wavecovar internally, and the result is plotted as a function of level.

See Also

wavevar, wavecovar

Examples

# NOT RUN {
data(carlinadata)
coords<- carlinadata[,4:5]

covar.plot(carlina.horrida ~ aridity + land.use - 1,
carlinadata,coord=coords,wavelet="d4",
wtrafo='modwt',plot='covar')

covar.plot(carlina.horrida ~ aridity + land.use - 1,
           carlinadata,coord=coords,wavelet="d4",
           wtrafo='modwt',plot='var')

# }