BZAN4397 Programming for Bus Analytics

Provide your code in the R file. Remember to save the file with all your answers and submit it# Exam 2 coding questions

# Date :

# Name :

#install.packages(“ggplot2”)

library(ggplot2)

df<- mtcars

#1. draw a scatter plot, with x-axis being the wt, and y-axis being the mpg. Please name the scatter plot “Scatter Plot of Wt vs Mpg”. You may use either plot or ggplot function. 

#2. draw a histogram of mpg, with binwidth of 5, fill is red. 

#3. draw a boxplot titled”Mpg n according to the number of cylinder”; x-axis is the wt, and y-axis is the mpg.Use the facet_grid function to form matrix of panels of cyl. 

#4. draw a scatter plot, with x-axis being the mpg, and y-axis being the wt, and color being the cyl. The point size is 5.  

#5. download the csv file “heart.csv” into the same folder as the R file, and assign it to hd, set the working directory to the source file location. 

#Create a scatterplot of biking and heart disease using ggplot.

attach(diamonds)

#6. draw a boxplot of “Color Diamond Price”, with x-asix being the color, y asix being the price. The fill color of the boxplot is blue

#7. draw a scatter plot of price vs carat.