n the following plot you see the rejection frequencies (defined as the frequency in which the estimator is non-zero) for 100 regressors represented along the horizontal axis), and repeated for the OLS, Lasso and Adaptive Lasso estimators. The red dots are the estimates for the rue non-zero coefficients. The black dots are the estimates of true-zero coefficients. OLS Lasso Adaptive Lasso 08- 08- 0.8 04- 0.4- 0.4 00- 00- 0.0- "ou can learn from the plots that: O a. The Lasso has a clear shrinkage towards zero O b. The Adaptive Lasso has better model-selection properties because it estimates more frequently the true zeros as zeros Oc. All of the options O d. The OLS has poor predictive performance O e. The Adaptive Lasso has better model-selection properties because it estimates more frequently the true non-zeros as non-zeros coef
n the following plot you see the rejection frequencies (defined as the frequency in which the estimator is non-zero) for 100 regressors represented along the horizontal axis), and repeated for the OLS, Lasso and Adaptive Lasso estimators. The red dots are the estimates for the rue non-zero coefficients. The black dots are the estimates of true-zero coefficients. OLS Lasso Adaptive Lasso 08- 08- 0.8 04- 0.4- 0.4 00- 00- 0.0- "ou can learn from the plots that: O a. The Lasso has a clear shrinkage towards zero O b. The Adaptive Lasso has better model-selection properties because it estimates more frequently the true zeros as zeros Oc. All of the options O d. The OLS has poor predictive performance O e. The Adaptive Lasso has better model-selection properties because it estimates more frequently the true non-zeros as non-zeros coef
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![In the following plot you see the rejection frequencies (defined as the frequency in which the estimator is non-zero) for 100 regressors
(represented along the horizontal axis), and repeated for the OLS, Lasso and Adaptive Lasso estimators. The red dots are the estimates for the
true non-zero coefficients. The black dots are the estimates of true-zero coefficients.
OLS
Lasso
Adaptive Lasso
12-
12-
1.2-
0.8-
0.8-
0.8-
0.4-
0.4-
0.4-
0.0-
0.0-
0.0-
100
100
You can learn from the plots that:
O a. The Lasso has a clear shrinkage towards zero
O b. The Adaptive Lasso has better model-selection properties because it estimates more frequently the true zeros as zeros
O. All of the options
Od.
The OLS has poor predictive performance
O e.
The Adaptive Lasso has better model-selection properties because it estimates more frequently the true non-zeros as non-zeros
coef
*8-](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff32d0f1d-b327-42ec-bdcd-84730aec4eb8%2Fed2573ec-eede-46ee-bb2f-85d0e948c32f%2Fv6fw2xk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In the following plot you see the rejection frequencies (defined as the frequency in which the estimator is non-zero) for 100 regressors
(represented along the horizontal axis), and repeated for the OLS, Lasso and Adaptive Lasso estimators. The red dots are the estimates for the
true non-zero coefficients. The black dots are the estimates of true-zero coefficients.
OLS
Lasso
Adaptive Lasso
12-
12-
1.2-
0.8-
0.8-
0.8-
0.4-
0.4-
0.4-
0.0-
0.0-
0.0-
100
100
You can learn from the plots that:
O a. The Lasso has a clear shrinkage towards zero
O b. The Adaptive Lasso has better model-selection properties because it estimates more frequently the true zeros as zeros
O. All of the options
Od.
The OLS has poor predictive performance
O e.
The Adaptive Lasso has better model-selection properties because it estimates more frequently the true non-zeros as non-zeros
coef
*8-
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