deprecated
This function is deprecated and may be soon removed from the package.
plot3logit() method draws the ternary plot using standard graphics
methods provided by package Ternary. Use the method plot() of
field3logit objects instead.
plot3logit(
model,
delta,
label = "",
p0 = NULL,
alpha = NULL,
ncurves = 8,
narrows = Inf,
edge = 0.01,
...
) either a fitted trinomial model or a matrix of regressor
coefficients. See section Compatibility and examples of
plot3logit-package.
the change in the values of covariates to be represented.
This could be either a numeric vector, the name of a covariate
(passed either as a character or an expression), or a mathematical
expression involving one or more than one covariates (passed either as
a character or an expression). If a list is passed to delta,
multiple fields are computed according to parameters passed as
components of a 2-level list. See details and examples.
label to be used for identifying the field when multiple
fields are plotted. See multifield3logit().
list of starting points (ternary coordinates) of the curves
of the field. If not specified, field3logit automatically compute
nstreams candidate points so that arrows are evenly distributed over
the ternary plot area. See Examples.
numeric vector of length two where constants \(\alpha^{(1)}\)
and \(\alpha^{(2)}\) are stored (only for ordinal models), as
defined in Equation (7) of santi2019;textualplot3logit.
number of curves of the field to be computed. In case
of ordinal models, this parameter is ineffective, as only one curve
can be drawn. The parameter is ineffective also in case that argument
p0 is set.
maximum number of arrows to be drawn per curve.
minimum distance between each arrow (or point) and the edge of the ternary plot.
other arguments passed to or from other methods.
S3 object of class field3logit structured as a named list.