I don't understand how to do a Weibull distribution estimation of parameters.

Greetings!

I need a little bit of help please. I was given a random set of numbers, listed below, and was given these two equations.

and

for the 3 Parameter Weibull. I was told to use MatLab to estimate the 3 paramaters, V0, Va, and b from the first equation. I used the second equation to come up with with p(v) as shown this table.

I imported this data into Matlab, and then started messing around with the weibull functions, but I can't seem to get it to work, could someone please help me?

Thank you for your time!

[Jeff Miller]

Estimate by maximum likelihood? or by some other criterion?

Why do you have two different equations for p(v)? (The first looks like the Weibull pdf, but what is the second?)

Answer 1

[Emmanuel Lim]

The professor told us that we needed the second equation to get the median ranks for the weibull dist estimation. He claimed that matlab could then do like a regression model with that information and give us the values for v0, va, and b, which he called the Weibull parameters. Those are what we need to find.

Thank you for taking the time to read this!

[Jeff Miller]

Sorry, I don't know how to do that.

[Emmanuel Lim]

No problem, thank you for your time though!