How to use lsqcurvefit to calculate Urban Heat Island Intensity

Hi,

I'm looking at some research papers by Streutker (2003) - https://www.sciencedirect.com/science/article/pii/S0034425703000075 and Anniballe, R. & Bonafoni, S. (2015) - https://www.mdpi.com/1999-4893/8/2/82/htm

They describe using the lsqcurvefit function to calculate the magnitude, spatial extent, orientation, and central location of the heat island, but I'm quite new to MATLAB, so I don't understand how to use that function to find it. Would anyone be able to explain it for me please?

Thank you

Answer 1

[Matt J]

You can read all about it here,

https://www.mathworks.com/help/optim/ug/lsqcurvefit.html

[Michael Burnett]

I know. I've read that page numerous times and I can't figure out how to apply it to the Streutker equation

[Matt J]

Why not? How is the Streeutker equation an exception to the examples shown in the lsqcurvefit documentation?

[Image Analyst]

Since the authors did it already, I assume you contacted them. So what happened when you contacted them? Did they say "get lost"?

https://matlab.fandom.com/wiki/FAQ#Can_you_program_up_the_algorithm_in_this_article_for_me_and_explain_it_to_me.3F

[Michael Burnett]

LOL you're absolutely right. I shouldn't have asked this community. I just emailed them the question.