Description Usage Arguments Details Value Author(s) Examples
For objects of class glm
, it calculates the change the average predicted probability for a hypothetical candidate set of values of a covariate.
1 | aveEffPlot(obj, varname, data, R=1500, nvals=25, plot=TRUE,...)
|
obj |
A model object of class |
varname |
Character string giving the variable name for which average effects are to be calculated. |
data |
Data frame used to fit |
R |
Number of simulations to perform. |
nvals |
Number of evaluation points at which the average probability will be calculated. |
plot |
Logical indicating whether plot should be returned, or just data (if |
... |
Other arguments to be passed down to |
The function plots the average effect of a model covariate, for objects of class glm
. The function does not work with poly
unless the coefficients are provided as arguments to the command in the model (see example below).
A plot or a data frame
Dave Armstrong (UW-Milwaukee, Department of Political Science)
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