Chapter 12 Apperance and Customization

The apperance of ggplot objects can be imporved using themes in ggplot2 package and other theme packages such as ggthemes and bbplot.

Consider uspopchange data from gcookbook package.

uspopchange <- gcookbook::uspopchange

t = table(uspopchange$Region)
df = data.frame(t)
df

##            Var1 Freq
## 1     Northeast    9
## 2         South   16
## 3 North Central   12
## 4          West   13

ggplot(df,aes(x=Var1,y=Freq,fill=Var1))+geom_bar(stat="identity",width=0.5)+
  labs(title="Distribution of Region",y="Freq",x = "Region")+scale_fill_manual(values=c("darkred","gold1","maroon","steelblue"))+geom_text(aes(label=Freq),vjust=-0.25,fontface="bold")+theme_bw()

library(bbplot)
ggplot(df,aes(x=Var1,y=Freq,fill=Var1))+geom_bar(stat="identity",width=0.5)+
  labs(title="Distribution of Region",y="Freq",x = "Region")+scale_fill_manual(values=c("darkred","gold1","maroon","steelblue"))+geom_text(aes(label=Freq),vjust=-0.25,fontface="bold")+bbc_style()

library(ggthemes)
ggplot(df,aes(x=Var1,y=Freq,fill=Var1))+geom_bar(stat="identity",width=0.5)+
  labs(title="Distribution of Region",y="Freq",x = "Region")+scale_fill_manual(values=c("darkred","gold1","maroon","steelblue"))+geom_text(aes(label=Freq),vjust=-0.25,fontface="bold")+theme_fivethirtyeight()

library(ggthemes)
ggplot(df,aes(x=Var1,y=Freq,fill=Var1))+geom_bar(stat="identity",width=0.5)+
  labs(title="Distribution of Region",y="Freq",x = "Region")+scale_fill_manual(values=c("darkred","gold1","maroon","steelblue"))+geom_text(aes(label=Freq),vjust=-0.25,fontface="bold")+theme_economist_white()

You can also use theme() function for customization.

library(bbplot)
ggplot(df,aes(x=Var1,y=Freq,fill=Var1))+geom_bar(stat="identity",width=0.5)+
labs(title="Distribution of Region",y="Freq",x = "Region")+scale_fill_manual(values=c("darkred","gold1","maroon","steelblue"))+geom_text(aes(label=Freq),vjust=-0.25,fontface="bold")+bbc_style()+
  theme(plot.title = element_text(size=18),axis.text = element_text(size=12,face="bold"),legend.text = element_text(size=10))