Nothing
## ----setup, include = FALSE---------------------------------------------------
knitr::opts_chunk$set(
collapse = TRUE,
comment = "#>"
)
## -----------------------------------------------------------------------------
library("breakDown")
head(wine, 3)
## -----------------------------------------------------------------------------
model <- lm(quality ~ fixed.acidity + volatile.acidity + citric.acid + residual.sugar + chlorides + free.sulfur.dioxide + total.sulfur.dioxide + density + pH + sulphates + alcohol,
data = wine)
## -----------------------------------------------------------------------------
summary(model)$r.squared
summary(model)$adj.r.squared
BIC(model)
## ----fig.width=7--------------------------------------------------------------
library(breakDown)
library(ggplot2)
new_observation <- wine[1,]
br <- broken(model, new_observation)
br
# different roundings
print(br, digits = 2, rounding_function = signif)
print(br, digits = 6, rounding_function = round)
plot(br) + ggtitle("breakDown plot for predicted quality of a wine")
## ----fig.width=7--------------------------------------------------------------
br <- broken(model, new_observation, baseline = "Intercept")
br
plot(br) + ggtitle("breakDown plot for predicted quality of a wine")
## ----fig.width=7--------------------------------------------------------------
model <- lm(quality ~ (alcohol + density + residual.sugar)^2,
data = wine)
new_observation <- wine[1,]
br <- broken(model, new_observation, baseline = "Intercept")
br
plot(br) + ggtitle("breakDown plot for predicted quality of a wine")
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