vintPlot function

vintPlot

Plot the pair-wise variable interactions inclusion porportions for a BART model with the 25

vintPlot(trees, plotType = "barplot", top = NULL)

Arguments

• trees: A data frame created by extractTreeData function.
• plotType: Which type of plot to return. Either a barplot 'barplot' with the quantiles shown as a line, a point plot with the quantiles shown as a gradient 'point', or a letter-value plot 'lvp'.
• top: Display only the top X metrics (does not apply to the letter-value plot).

Returns

A plot of variable importance.

Examples

if(requireNamespace("dbarts", quietly = TRUE)){
 # Load the dbarts package to access the bart function
 library(dbarts)
 # Get Data
 df <- na.omit(airquality)
 # Create Simple dbarts Model For Regression:
 set.seed(1701)
 dbartModel <- bart(df[2:6], df[, 1], ntree = 5, keeptrees = TRUE, nskip = 10, ndpost = 10)

 # Tree Data
 trees_data <- extractTreeData(model = dbartModel, data = df)
 vintPlot(trees = trees_data, top = 5)
}