FindFit for the 4-parameter beta distribution

Hi all,

I am trying to use FindFit in order to choose p and q parameters of ft function (which is actually a 4-parameter beta distribution) to match "data". I do not know why I get the Jacobean not being real warning at all times and also very poor fits. (If I do not specify starting guesses I get p->1 and q->1). Even if I specify starting values for p and q, FindFit just returns those very values. Can you please help me to have this curve fitting work properly? Maybe I am doing something wrong. The code is attached.

Thanks a lot.



Want to reply to this thread?

"FindFit for the 4-parameter beta distribution" You must log in or register to reply here.

Related Threads for: FindFit for the 4-parameter beta distribution

Physics Forums Values

We Value Quality
• Topics based on mainstream science
• Proper English grammar and spelling
We Value Civility
• Positive and compassionate attitudes
• Patience while debating
We Value Productivity
• Disciplined to remain on-topic
• Recognition of own weaknesses
• Solo and co-op problem solving