Explore the data using data visualization capabilities of r

Assignment Help Database Management System
Reference no: EM131923595

Problem

The dataset ToyotaCorolla.csv contains data on used cars on sale during the late summer of 2004 in the Netherlands. It has 1436 records containing details on 38 attributes, including Price, Age, Kilometers, HP, and other specifications.

a. Explore the data using the data visualization capabilities of R. Which of the pairs among the variables seem to be correlated?

b. We plan to analyze the data using various data mining techniques described in future chapters. Prepare the data for use as follows:

i. The dataset has two categorical attributes, Fuel Type and Metallic. Describe how you would convert these to binary variables. Confirm this using R's functions to transform categorical data into dummies.

ii. Prepare the dataset (as factored into dummies) for data mining techniques of supervised learning by creating partitions in R. Select all the variables and use default values for the random seed and partitioning percentages for training (50%), validation (30%), and test (20%) sets. Describe the roles that these partitions will play in modeling.

Reference no: EM131923595

Questions Cloud

Identify your targets and products you will offer : Go through the selling process to identify your targets, products you will offer and your promotional ideas to get sales enquiries.
Write the stepper to check the return values : Write the stepper to check the return values. Make versions of this implementation with the same two defects. Generate a test suite from the model program.
Write a stepper for the three newsreader implementations : Write a stepper for the three newsreader implementations you wrote for the problems. Generate a test suite from the newsreader model program.
Compute the gross margin ratio : Compute the gross margin ratio (both with and without services revenue) and net profit margin ratio. Compute the current ratio and acid-test ratio
Explore the data using data visualization capabilities of r : Explore the data using the data visualization capabilities of R. Which of the pairs among the variables seem to be correlated?
Which model are you more likely to consider for deployment : Two models are applied to a dataset that has been partitioned. Which model are you more likely to consider for final deployment?
How many records would you expect to be removed : A dataset has 1000 records and 50 variables with 5% of the values missing, spread randomly throughout. About how many records would you expect to be removed?
Explain why when a model is fit to training data : Using the concept of overfitting, explain why when a model is fit to training data, zero error with those data is not necessarily good.
Examine the data carefully and indicate what your next step : Consider the sample from bank database shown in Table 2.16; it was selected randomly from. Examine the data carefully and indicate what your next step would be.

Reviews

Write a Review

Database Management System Questions & Answers

  Knowledge and data warehousing

Design a dimensional model for analysing Purchases for Adventure Works Cycles and implement it as cubes using SQL Server Analysis Services. The AdventureWorks OLTP sample database is the data source for you BI analysis.

  Design a database schema

Design a Database schema

  Entity-relationship diagram

Create an entity-relationship diagram and design accompanying table layout using sound relational modeling practices and concepts.

  Implement a database of courses and students for a school

Implement a database of courses and students for a school.

  Prepare the e-r diagram for the movie database

Energy in the home, personal energy use and home energy efficiency and Efficient use of ‘waste' heat and renewable heat sources

  Design relation schemas for the entire database

Design relation schemas for the entire database.

  Prepare the relational schema for database

Prepare the relational schema for database

  Data modeling and normalization

Data Modeling and Normalization

  Use cases perform a requirements analysis for the case study

Use Cases Perform a requirements analysis for the Case Study

  Knowledge and data warehousing

Knowledge and Data Warehousing

  Stack and queue data structure

Identify and explain the differences between a stack and a queue data structure

  Practice on topic of normalization

Practice on topic of Normalization

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd