Question

There is histfit function in Matlab would plot histogram and fit the distribution by bin values.
The distribution’s parameters have to be estimated.
How to implement histfit in r? I searched for a long time, but it has no lucky.

This post have mentioned this before, but there is no preferable solution. The sn package seems support several distribution, not so much.

I explore the data with hist function, the histogram shows gamma distribution in gerneral.
But if I add up bins and show it again, the graph will show more details, and gamma distribution fails.
fitdistr would fail to find parameters also.
so I want to fit the data just using the coarse data from histogram. This is the question, thank you for your help.

Answer 1

I have to answer it myself, package ‘bda’ could fit the binned data in several distributions, however it could only binning data by rounding.