plot.rt {stima} | R Documentation |
Function to plot a regression trunk.
Description
Results in a plot a regression trunk.
Usage
## S3 method for class 'rt'
plot(x,digits=2,...)
Arguments
x |
an object of class |
digits |
number of decimal places used in the plot. Default value is 2. |
... |
additional arguments to be passed. |
Details
The output is a plot of a regression trunk. Exception: If the first splitting predictor is categorical with more than 2 categories, the output will be multiple plots: for each category one plot of a regression trunk.
Note
The number of digits of the mean y
value displayed in each node can be adjusted using the command options(digits =..)
before the plot command.
Known bug: If a splitting variable (not the first one) in the regression trunk is categorical, the values of the categories are not displayed in the plot.
See Also
stima,stima.control,summary.rt
Examples
data(employee)
fit1<-stima(employee,2,first=3,vfold=0)
##adjust the number of decimal places used in the plot
plot(fit1,digits=1)
#categorical first split
fit2<-stima(employee,3,first=9,vfold=0)
plot(fit2)
#click on the plot to see the next one
#for each category of variable "jobcat" the subtree is shown in a separate plot