#install.packages("gridExtra") # in der Konsole

library(gridExtra)
library(ggplot2)

# Gebäudeschaden
hist1 <- ggplot(data, aes(SchGeb)) +
  geom_histogram(binwidth=0.1, color="black", fill="lightgrey") + 
  theme_bw() + 
  labs(title="Histogramm - SchGeb", y="absolute Haeufigkeit")

box1 <- ggplot(data, aes(y=SchGeb)) +
  geom_boxplot(fill="lightgrey", size=0.5) + 
  theme_bw() + theme(axis.text.x=element_blank(), axis.ticks.x=element_blank())+ xlim(-1, 1) +
  labs(title="Boxplot - SchGeb")

# Hausratschaden

hist2 <- ggplot(data, aes(SchHr)) +
  geom_histogram(binwidth=0.1, color="black", fill="lightgrey") + 
  theme_bw() + 
  labs(title="Histogramm - SchHr", y="absolute Haeufigkeit")

box2 <- ggplot(data, aes(y=SchHr)) +
  geom_boxplot(fill="lightgrey", size=0.5) + 
  theme_bw() + theme(axis.text.x=element_blank(), axis.ticks.x=element_blank())+ xlim(-1, 1) +
  labs(title="Boxplot - SchHr")

grid.arrange(hist1, hist2, box1, box2, ncol=2, heights=c(1,1.25))