GAMLj Johnson-Nayman plots — jnplot • GAMLj3

This function re-estimates a GAMLj model adding a Johnson-Nayman plot, if not available already. If no option is passed, extracts the plots present in the `gamlj*Results` object. If JN plot is present, it is returned as a ggplot2 object, if more than one is present, a list of plots is returned. FALSE is returned if no plot is present or defined.

jnplot(x, formula = NULL, ...)

Arguments

x: a gamlj results object of the class `gamlj`
formula: a right hand side formula specifying the effect to plot, of the form `~x*z` or `~x*z*w`. It has prevalence on other options defining a plot.
...: all options accepted by a gamlj model function. Relevant for new plots are plot_x, plot_z and plot_by

Value

an object of class ggplot or a list of ggplot objects

Author

Marcello Gallucci

Examples

data(qsport)
gmod <- GAMLj3::gamlj_lm(
    formula = performance ~ hours,
    data = qsport
)

plot(gmod, plot_x = "hours")
#> Warning: The `size` argument of `element_line()` is deprecated as of ggplot2 3.4.0.
#> ℹ Please use the `linewidth` argument instead.
#> ℹ The deprecated feature was likely used in the jmvcore package.
#>   Please report the issue at <https://github.com/jamovi/jmvcore/issues>.

plot(gmod, formula = ~hours)
#> [[1]]

#>