beta0 value estimation in fitnlm
조회 수: 7 (최근 30일)
이전 댓글 표시
How to guess the initial value(beta0) for fitnlm(curve fiiting)?
Suppose this is my dataset.
dataset
A B C D
0.25 20 20 5.286
1.00 20 20 5.376
0.25 30 20 5.465
1.00 30 20 5.555
and
D = f(A,B,C)
댓글 수: 0
채택된 답변
Star Strider
2020년 10월 14일
The usual approach is to make a wild guess as to the magnitudes of the parameters, and hope for the best.
A more sophisticated approach is to use the ga (genetic algorithm) function to search the parameter space and come up with a reasonable approximation of the correct parameters. Then use fitnlm to get the most accurate set of parameter estimates, using the ga results as initial parameter estimates.
댓글 수: 0
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Genetic Algorithm에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!