Information Technology > QUESTIONS & ANSWERS > Georgia Institute Of Technology - ISYE 6501HW8_2. (All)

Georgia Institute Of Technology - ISYE 6501HW8_2.

Document Content and Description Below

HW8 Question 11.1 Using the crime data set uscrime.txt from Questions 8.2, 9.1, and 10.1, build a regression model using: 1. Stepwise regression 2. Lasso 3. Elastic net For Parts 2 and 3, remember... to scale the data first – otherwise, the regression coeffcients will be on different scales and the constraint won’t have the desired effect. For Parts 2 and 3, use the glmnet function in R. Notes on R: For the elastic net model, what we called ff in the videos, glmnet calls “alpha”; you can get a range of results by varying alpha from 1 (lasso) to 0 (ridge regression) [and, of course, other values of alpha in between]. In a function call like glmnet(x,y,family=”mgaussian”,alpha=1) the predictors x need to be in R’s matrix format, rather than data frame format. You can convert a data frame to a matrix using as.matrix – for example, x <- as.matrix(data[,1:n-1]) Rather than specifying a value of T, glmnet returns models for a variety of values of T. rm(list = ls()) set.seed(1) library(caret) ## Loading required package: lattice ## Loading required package: ggplot2 library(MASS) library(glmnet) ## Loading required package: Matrix ## Loaded glmnet 3.0-2 uscrime <- read.delim("~/Desktop/data 2.2 2/uscrime.txt", header=TRUE) step_data = data.frame(read.delim("~/Desktop/data 2.2 2/uscrime.txt", header=TRUE)) Step I decided on “backward” model type because that implies the removal of predictors , where as forward means the addition of predictors. I want a model as simple as possible, so less predictors. model_all = lm(Crime ~., step_data) step(model_all, direction = "backward") [Show More]

Last updated: 1 year ago

Preview 1 out of 9 pages

Reviews( 0 )

Recommended For You

 Computer Science> QUESTIONS & ANSWERS > WGU Information Management and the Application of Technology - C468 (All)

preview
WGU Information Management and the Application of Technology - C468

WGU Information Management and the Application of Technology - C468 Defined as the ability to recognize when information is needed as well as the skills to find, evaluate and use needed informa...

By Tenhang , Uploaded: Jul 14, 2022

$10

 *NURSING> QUESTIONS & ANSWERS > WGU Information Management and the Application of Technology - C468 (All)

preview
WGU Information Management and the Application of Technology - C468

WGU Information Management and the Application of Technology - C468 Defined as the ability to recognize when information is needed as well as the skills to find, evaluate and use needed information...

By Excel , Uploaded: Jul 12, 2022

$6

 Information Technology> QUESTIONS & ANSWERS > WGU Information Management and the Application of Technology - C468 (All)

preview
WGU Information Management and the Application of Technology - C468

WGU Information Management and the Application of Technology - C468 70 Exam Questions with 100% Correct Answers 2022 Defined as the ability to recognize when information is needed as well as the sk...

By Nutmegs , Uploaded: May 13, 2022

$9.5

 Business> QUESTIONS & ANSWERS > Information Management and the Application of Technology - C468 (All)

preview
Information Management and the Application of Technology - C468

How is information related to data? YOUR ANSWER CORRECT ANSWER Information is data that have been interpreted Information forms the base for accurate data collection Data provide an explanation...

By charles , Uploaded: Apr 04, 2022

$7

 Social Sciences> QUESTIONS & ANSWERS > Georgia Institute Of Technology - ISYE 6644 / ISYE6644 Week 12 Homework Simulation (All)

preview
Georgia Institute Of Technology - ISYE 6644 / ISYE6644 Week 12 Homework Simulation

(Lesson 8.1: Introduction to Input Modeling.) It's GIGO time! Let's consider an queueing system with Exp( ) interarrivals and Exp( ) FIFO services at a single server. You may recall from some class...

By Nutmegs , Uploaded: Mar 21, 2022

$12

 Social Sciences> QUESTIONS & ANSWERS > Georgia Institute Of Technology - ISYE 6501/ISYE6501 Midterm Quiz 2 with Correct Answers (All)

preview
Georgia Institute Of Technology - ISYE 6501/ISYE6501 Midterm Quiz 2 with Correct Answers

Midterm Quiz 2 - GT Students and Veried MM Learners 90 Minute Time Limit Instructions Work alone. Do not collaborate with or copy from anyone else. You may use any of the following resources: One...

By Nutmegs , Uploaded: Mar 21, 2022

$13

 Information Technology> QUESTIONS & ANSWERS > Georgia Institute Of Technology - ISYE 6501/ISYE6501 Midterm Quiz 1 with Correct Answers (All)

preview
Georgia Institute Of Technology - ISYE 6501/ISYE6501 Midterm Quiz 1 with Correct Answers

Step 2: Midterm Quiz 1 - GT Students (Launch Proctortrack rst before taking the Midterm Quiz 1) 95 Minute Time Limit Instructions Work alone. Do not collaborate with or copy from anyone else. You...

By Nutmegs , Uploaded: Mar 21, 2022

$14

 Business> QUESTIONS & ANSWERS > Georgia Institute Of Technology - ISYE 6501midterm 2 solutions (All)

preview
Georgia Institute Of Technology - ISYE 6501midterm 2 solutions

NAME____________________________ ISYE 6501, Introduction to Analytics Modeling Midterm #2 – Friday, November 8, 2019 50 minute time limit INSTRUCTIONS • Work alone. Do not collaborate with or copy fro...

By A+ Grades , Uploaded: Jul 24, 2021

$6

 Business> QUESTIONS & ANSWERS > Georgia Institute Of Technology - ISYE 6501midterm 2 solutions (All)

preview
Georgia Institute Of Technology - ISYE 6501midterm 2 solutions

NAME____________________________ ISYE 6501, Introduction to Analytics Modeling Midterm #2 – Friday, November 8, 2019 50 minute time limit INSTRUCTIONS • Work alone. Do not collaborate with or copy fro...

By Tutor Frankline , Uploaded: Jul 24, 2021

$9

 Information Technology> QUESTIONS & ANSWERS > Georgia Institute Of Technology - ISYE 6501GT Students _ Final Quiz _ ISYE6501x Courseware _ edX (All)

preview
Georgia Institute Of Technology - ISYE 6501GT Students _ Final Quiz _ ISYE6501x Courseware _ edX

GT Students Final Quiz due Dec 7, 2020 02:00 EST Completed 180 Minute Time Limit Instructions Work alone. Do not collaborate with or copy from anyone else. Work the problems in any order you wish , bu...

By Tutor Frankline , Uploaded: Jul 21, 2021

$8

$7.00

Add to cart

Instant download

Can't find what you want? Try our AI powered Search

OR

GET ASSIGNMENT HELP
96
0

Document information


Connected school, study & course



About the document


Uploaded On

Mar 14, 2021

Number of pages

9

Written in

Seller


seller-icon
Muchiri

Member since 3 years

208 Documents Sold


Additional information

This document has been written for:

Uploaded

Mar 14, 2021

Downloads

 0

Views

 96

Document Keyword Tags

THE BEST STUDY GUIDES

Avoid resits and achieve higher grades with the best study guides, textbook notes, and class notes written by your fellow students

custom preview

Avoid examination resits

Your fellow students know the appropriate material to use to deliver high quality content. With this great service and assistance from fellow students, you can become well prepared and avoid having to resits exams.

custom preview

Get the best grades

Your fellow student knows the best materials to research on and use. This guarantee you the best grades in your examination. Your fellow students use high quality materials, textbooks and notes to ensure high quality

custom preview

Earn from your notes

Get paid by selling your notes and study materials to other students. Earn alot of cash and help other students in study by providing them with appropriate and high quality study materials.

WHAT STUDENTS SAY ABOUT US


What is Browsegrades

In Browsegrades, a student can earn by offering help to other student. Students can help other students with materials by upploading their notes and earn money.

We are here to help

We're available through e-mail, Twitter, Facebook, and live chat.
 FAQ
 Questions? Leave a message!

Follow us on
 Twitter

Copyright © Browsegrades · High quality services·