Recall the following two criteria for quality of a linear model: AIC = n log ( RSS/n) + 2(k +1) and BIC = n log ( RSS/n ) + (k + 1) log(n). In both cases, a smaller value corresponds to a “better fit". Suppose you perform model selection by adding candidate predictors sequentially, comparing either AIC or BIC at each step. Under what condition is using AIC as opposed to BIC more likely to produce a final model with more predictors? Under what condition is using AIC as opposed to BIC more likely to produce a final model with fewer predictors? %3D
Recall the following two criteria for quality of a linear model: AIC = n log ( RSS/n) + 2(k +1) and BIC = n log ( RSS/n ) + (k + 1) log(n). In both cases, a smaller value corresponds to a “better fit". Suppose you perform model selection by adding candidate predictors sequentially, comparing either AIC or BIC at each step. Under what condition is using AIC as opposed to BIC more likely to produce a final model with more predictors? Under what condition is using AIC as opposed to BIC more likely to produce a final model with fewer predictors? %3D
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![Recall the following two criteria for quality of a
linear model: AIC = n log ( RSS/n) + 2(k +1) and BIC
= n log ( RSS/n ) + (k + 1) log(n). In both cases, a
smaller value corresponds to a "better fit". Suppose
you perform model selection by adding candidate
predictors sequentially, comparing either AIC or
BIC at each step. Under what condition is using AIC
as opposed to BIC more likely to produce a final
model with more predictors? Under what condition
is using AIC as opposed to BlC more likely to
produce a final model with fewer predictors?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc6813d58-7b84-4057-b95a-7bc373972e1c%2F46c01299-fbdf-48d6-8542-8756d27bb197%2Faltjqks_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Recall the following two criteria for quality of a
linear model: AIC = n log ( RSS/n) + 2(k +1) and BIC
= n log ( RSS/n ) + (k + 1) log(n). In both cases, a
smaller value corresponds to a "better fit". Suppose
you perform model selection by adding candidate
predictors sequentially, comparing either AIC or
BIC at each step. Under what condition is using AIC
as opposed to BIC more likely to produce a final
model with more predictors? Under what condition
is using AIC as opposed to BlC more likely to
produce a final model with fewer predictors?
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