How do I specify the limits of parameters individually while fitting?
조회 수: 5 (최근 30일)
이전 댓글 표시
On top of not knowing how to specifically limit 1 parameter to positive numbers, I get this error for my custom model:
Error using
fittype/testCustomModelEvaluation
(line 16)
Custom equations must produce an
output vector, matrix, or array that
is the same size and shape as the
input data. This custom equation
fails to meet that requirement:
m*exp(-d/x)*x.^2
Here is my code:
data = readmatrix('nagn125.txt');
vv=data(:,1);
ii=data(:,2);
pos=vv>0; neg=~pos;
gpos=fittype(@(m,c,d,x) m*exp(-c)*exp(-d/x)*x.^2);
options=fitoptions('exp(-d/x)','Lower',0);
plot(fneg,vv(neg),ii(neg))
grid('on')
댓글 수: 0
채택된 답변
Nagasai Bharat
2021년 3월 11일
Hi,
Change the fittype statement to that of below. This should solve the error you are getting
gpos=fittype(@(m,c,d,x) m.*exp(-c).*exp(-d./x).*x.^2);
댓글 수: 0
추가 답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Interpolation에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!