Displaying 1 result from an estimated 1 matches for "cdffitdemo".
2008 Feb 22
1
fitting a lognormal distribution using cumulative probabilities
...however I was unable to use nls{stat} for lognormal.
I found a website that explains how to fit univariate distribution functions
based on cumulative probabilities, including a lognormal example, in Matlab:
http://www.mathworks.com/products/statistics/demos.html?file=/products/demos/shipping/stats/cdffitdemo.html
and other programs like TableCurve 2D seem to do this too.
There must be a straightforward method in R which I have overlooked. Any
suggestion on how can I estimate these parameters in R or helpful references
are very much appreciated.
(not sure if it helps but) here is an example of my typ...