CS544 Module 3 Assignment

General Rules for Homework Assignments

• You are strongly encouraged to add comments in the code. Doing so will help your instructor/grader understand your programming logic and grade you more accurately.

• All plots/graphs made should be properly labeled.

• You must work on your assignments individually. You are not allowed to copy answers from others.

• Each assignment has a strict deadline. If there is a delay, you must get in touch with the instructor and TA. Late submissions without reasons will result in grade deduction.

• When the term lastName is referenced in an assignment, please replace it with your last n

Part 1) 30 points

Read in data from the attached file, Aids2.csv. The data describe patients diagnosed with AIDS in Australia before 1 July 1991.Here is the description of some of the data columns:

state: Grouped state of origin: "NSW "includes ACT and "other" is WA, SA, NT and TAS

Sex: Sex of patient.

diag: date of diagnosis.

death: date of death or end of observation.

status: "A" (alive) or "D" (dead) at end of observation.

T.categ: Reported transmission category.

age: Age (years) at diagnosis.

Do not use explicit loops for any calculations. Do not hard code in the solution. The solution should work for any denominations.

a) How many female and male patients are there in the data? Visualize it using a pie chat.

b) Calculate the proportion of patients dead at end of observation.

c) Calculate the percentage of female and male patient dead at end of observation.

d) What are the female and male patients’ median age at diagnosis? Draw two histograms to show the distributions of age at diagnosis for females and males.

Part 2) 30 points

Suppose that a group of people voted on whether to support a policy. Consider the two-way summarized data shown below showing the voting result of men and women.

a) Create a matrix for the above data. Set row names for the data. Set column names for the data.

b) Add the dimension variables Gender and Vote to the data. Show the marginal distributions for the Gender and the Voting Result. Show the result of adding margins to the data.

c) Show the proportional data separately for Gender and Voting result. Interpret the results.

d) Using appropriate colors, show the mosaic plot for the data. Add legend to the plot.

e) Show the barplot for Gender and Voting Result separately with the bars side by side. Add legend to the plot.