Producing a line of best fit with equation
조회 수: 112 (최근 30일)
이전 댓글 표시
Hi
I have been using lsline to produce a linear line of bext fit for two datasets. I was wondering if there was a similar command that produced the line of best fit and provided an equation (in the form y=mx+c) for said line.
Many Thanks
댓글 수: 0
채택된 답변
Sebastian Castro
2016년 4월 24일
There is also the polyfit function in MATLAB. If you specify an order of 1, the output of polyfit will have the two components m and c as you specified.
- Sebastian
댓글 수: 0
추가 답변 (2개)
Kylie Hansen
2017년 2월 16일
편집: Image Analyst
2021년 12월 10일
Thought I'd share an alternate answer from this github repository:
The code below prints a 1x2 matrix where the first value is the slope of the line and the second is the y-int.
Just plug into slope intercept form (y = mx+ b) and you've got the equation.
h = lsline ;
p2 = polyfit(get(h,'xdata'),get(h,'ydata'),1)
참고 항목
카테고리
Help Center 및 File Exchange에서 Regression에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!