Plot to exercise 9.8

The purpose of a violin plot:

It is used to visualize the distribution of numerical data.

library(ggplot2)

Sheff_temp <- read.csv("Sheffield_max_temp_data.csv", header = FALSE)

colnames (Sheff_temp) <- c ("Year", "Month", "Max_temp")

Sheff_temp_noNA <- na.omit(Sheff_temp)

attach(Sheff_temp_noNA)

ggplot (Sheff_temp_noNA, 
        aes (x = factor (Month, labels = month.abb),
             y = Max_temp, fill = factor (Month) 
        )   ##### Maps the month to the x-axis, 
        ##### mean temperature to the y-axis, 
        ##### and uses the fill aesthetic for different months.
)+
  geom_violin (trim = FALSE, alpha = 0.8) +   ### Creates a violin plot.
        ### trim: controls whether to trim the width of the violin
        ### alpha value to control the transparency of the violins according to your preferences
        ### higher value of alpha -> less transparent
  
  scale_x_discrete(name = "Month") +                            ### Sets the axis labels.
  scale_y_continuous(name = "Mean Temperature") +                      
  ggtitle("Violin plot of Monthly Mean Temperature of Sheffield")+  
                                          ### Gives the plot title.
  
  theme_minimal()+                                         
                                          ### Sets the plot theme to a minimal style.
  
  theme(panel.background = element_rect(fill = "pink"))    

                                          ### Sets the background color of the plot to pink
detach(Sheff_temp_noNA)