plot_infotables: Create bar charts for WOE or NWOE vectors

In Information: Data Exploration with Information Theory (Weight-of-Evidence and Information Value)

Description

plot_infotable creates WOE or NWOE bar charts for one or more variables. For multi-variable plots, bar charts will be displayed in a grid for comparison.

Usage

plot_infotables(information_object = NULL, variables = NULL,
  same_scales = FALSE, show_values = FALSE)

Arguments

information_object	object generated by the information package.
variables	vector of one more variables. For multi-variable plots, bar charts will be displayed in a grid.
same_scales	if set to TRUE, all plots will have the same limits on the y-axes (default is FALSE).
show_values	if set to TRUE, values will be displayed on the bar chart (default is FALSE).

Examples

 
##------------------------------------------------------------
## WOE plots
##------------------------------------------------------------
library(Information)
data(train, package="Information")
train <- subset(train, TREATMENT==1)
IV <- Information::create_infotables(data=train, y="PURCHASE", parallel=FALSE)

# Plotting a single variable
Information::plot_infotables(IV, "N_OPEN_REV_ACTS")

# Plotting multiple variables in a grid for comparison
Information::plot_infotables(IV, IV$Summary$Variable[1:4], same_scale=TRUE)

# If the goal is to plot multiple variables individually, as opposed to a comparison-grid, we can
# loop through the variable names and create individual plots
## Not run: 
names <- names(IV$Tables)
plots <- list()
for (i in 1:length(names)){
  plots[[i]] <- plot_infotables(IV, names[i])
}
# Showing the top 18 variables
plots[1:18]

## End(Not run)

# We can speed up the creation of the information tables by invoking the parallel option (default)
# If we leave ncore as the default, create_infotables() will set ncore to available clusters - 1
## Not run: 
train <- subset(train, TREATMENT==1)
IV <- Information::create_infotables(data=train, y="PURCHASE")

## End(Not run)
closeAllConnections()

Example output

[1] "Variable TREATMENT was removed because it has only 1 unique level"
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[1] "Variable TREATMENT was removed because it has only 1 unique level"

Information documentation built on May 2, 2019, 7:15 a.m.