Ask Question, Ask an Expert


Ask Programming Language Expert

This section deals with electricity usage data for 241 households in New Zealand that was collected  in 2009. The data is for a single 24 hour period, and has been sampled every 30 minutes. Hence there are 48 measures per household. The first entry is at 12:30am, the second at 1am, and so on. So, for ex, the 14th sample is at 7am, and the 24th sample is at midday.

Run the supplied R script power. R, which loads the electricity data and produces a boxplot and ex plot for one household. Note that the data is in a data.frame (each row is labelled with each household identifier associated with this data), and that to plot an individual ex we turned the individual 48 data points into a numeric vector (as.numeric). 
problem 1: Examine the boxplot and briefly discuss the overall pattern of electricity usage for the households. 
problem 2: The electricity company is interested in understanding some general patterns of usage so that they can identify different types of user and therefore target them with specific pricing structures. Your task is to identify 4 overall patterns of usage and to identify the outlier households. 
problem 3: Identify 2 outlier households and show their pattern of usage. HINT: Use either k-means clustering  with about 16 cluster centres (this seems to work well), or a dendrogram with the tree cut into a  groupsize of 16, and find those clusters with a single household. 
problem 4: Discuss why these 2 outliers appear to be different from the overall general pattern of usage. 
problem 5: Determine the general pattern of electricity usage by grouping behaviour into 4 groups, plot them by taking the mean of each group over time, and discuss how they differ. Include a written description of these types of behaviour and what this tells us about each groups typical power consumption usage. 
This section deals with modelling the selection of stocks, bonds and cash to make up an investment portfolio. Load the data as follows: 
invest <-read.table("") 
The ROI column is the percentage predicted return on investment, the Risk column is a measure of the risk associated with this particular investment, and the Type indicates the type of investment. Note that each row is labelled with the type of investment and a number, so that you can (if needed) refer to individual investments. 
problem 6: Visualise and discuss the different ROI and Risk associated with Stocks, Bonds and Cash.
Run the “invest.R” script. This script does a multi-objective criteria analysis to determine the best mix of stocks, bonds and cash over a range of tradeoffs. 
problem 7: Describe in words what the “invest.R” script is doing, what the objective functions are, and what each of the constraints represent. 

The table below shows the recommended blend of stocks, bonds and cash for a number of different brokerage houses (i.e. businesses that take your money and invest it to give you a return).

2017_brokerage house investment.jpg

Table: Major brokerage house investment blends (1996). From:

problem 8: Using the result of the nsga2 model, examine and present the blend of stocks, bonds and cash for a low risk, moderate risk and high risk investment blend. Discuss, in relation to Table above, the level of risk that seems to be taken by the brokerage houses and whether the one year return performance is related to the associated risk of the brokerage house. 

problem 9: Produce a plot (such as that shown in Figure below) showing how the percentage of bonds, stocks and  cash varies as you move along the pareto front from the least to greatest risk. Discuss the patterns you observe and the relationship to Table above. Do the investment houses (Table above) that have the most risky blend receive the best ROI? Which investment house is the most risk adverse?

1483_investment blend.jpg

Figure: Plot of Risk versus investment blend as a percentage 
problem 10: Assume you only want to investigate the mix of solutions with the ROI between 8.0 and 12.0. State the constraint function that you would define to focus the search space between these ranges of ROI, and produce a plot of the pareto front using this additional constraint. NOTE that it may take several runs before you get the optimal front (the plot will be shown as BLUE DOTS if it has not found the optimal front).

Programming Language, Programming

  • Category:- Programming Language
  • Reference No.:- M91211

Have any Question? 

Related Questions in Programming Language

Assignmentafter informing the user what the program does

Assignment After informing the user what the program does, prompt the user for the number of darts to throw. Also, prompt for a number of simulations (why not have the program simulate this dart throwing more than once). ...

Assignmentthe csit racing club is a group that runs amateur

Assignment The CSIT Racing Club is a group that runs amateur car racing events throughout the US. In This project, write a program that will help the club determine the winner of their Fall Rally Race. You will need to d ...

Generate code for the following three-address statements

Generate code for the following three-address statements assuming a and b are arrays whose elements are 4-byte values. a) The four-statement sequence x = a[i] y = b[j] a[i] = y b[j] = x b) The three-statement sequence x ...

Assignmentstep 1create a class named account with data

Assignment Step 1: Create a class named Account with data fields for an account number, payment amount and balance as well as the appropriate set and get methods. Include a constructor method that contains no arguments. ...

Pseudocodes and flowchartxyz company employees work for 8

Pseudocodes and flowchart XYZ company employees work for 8 hours a day and 40 hours in a week. The employees are paid overtime at the rate of half of the salary. Employees who get more than 15000 must pay a supplementary ...

Assignment introduction to computer sciencepart a this

Assignment: Introduction to Computer Science Part A: This question is to be submitted to the instructor in the form of a Word (or OpenOffice) document containing the Java code and appropriate screen capture(s) of the out ...

Test 1you are permitted the use of pre-written notes

Test 1 You are permitted the use of pre-written notes, previous labs and the textbook. You are NOT permitted the help of the Lab TA or the Internet. Any cheating will result in a report Academic Integrity Violation and a ...

Assignmenta finance company provides loans for motorcycles

Assignment A finance company provides loans for motorcycles at different rates depending on how much the total loan amount is and how many payments will be made on the loan. Using the information in the table below, writ ...

Figure is code to count the number of primes from 2 to n

Figure is code to count the number of primes from 2 to n, using the sieve method on a suitably large array a. That is, a[i] is TRUE at the end only if there is no prime p i or less that evenly divides i. We initialize al ...

Design a project to allow a student to access current

Design a project to allow a student to access current grades and/or create a "What-if" situation on a continuing basis to understand where they are at any given point in the semester. You will need to calculate multiple ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen