Solution-Select a subset of predictors for a model

Select a subset of predictors for a model

Assignment Help Basic Statistics

Reference no: EM132096048

Two data scientists are discussing a strategy to select a subset of predictors for a model with n = 5,000 observations and p = 400 predictors. The ?rst suggests that they perform a forward stepwise selection procedure starting with a null model. Of these resulting models, they would ?nally choose the one with the smallest RSS. The second objects, saying that forward stepwise selection is a greedy algorithm and is unlikely to ?nd the true optimal model. Therefore, they should instead use a best subset algorithm. Do you agree with either of the data scientists? Explain your answer.

Reference no: EM132096048

Questions Cloud

How well would bidirectional search work on this problem : How well would bidirectional search work on this problem? What is the branching factor in each direction of the bidirectional search?

What could we do instead : Why would an SVM be a bad choice for this task? What could we do instead?

The difference between the terms flaming and shouting : Explain the difference between the terms "flaming" and "shouting" in relation to netiquette.

Complete a loan application form : Complete the Fact Find provided in Appendix 14 or your own company's Fact Find document - Complete the loan servicing calculation (NSR) by completing the form

Select a subset of predictors for a model : Two data scientists are discussing a strategy to select a subset of predictors for a model with n = 5,000 observations

Paper for a machine learning conference : Jacob is writing a paper for a machine learning conference. He has invented a "new" version of random forests:

Develop a method called min that takes a parameter : Develop a method called min that takes a parameter of an integer array and returns the smallest value stored in the parameter.

Estimating some parameter : Your friend who works in ?nancial investment company comes to you with a problem. She is interested in estimating some parameter a from her data

Add code to the onload event that calls the plugin : In the jquery.altrow.js file, code a plugin that uses the getElementsByTagName method to get all of an element's "tr" child elements.

User Account

All Pages

Select a subset of predictors for a model

Reference no: EM132096048

Reference no: EM132096048

Questions Cloud

Reviews

Write a Review

Basic Statistics Questions & Answers

Statistics-probability assignment

What is the least number

Determine the value of k

What is the probability

Binomial distributions

Caselet on mcdonald’s vs. burger king - waiting time

Generate descriptive statistics

Sampling variability and standard error

Estimate the population mean

Conduct a marketing experiment

Find out the probability

Linear programming models

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT