[R] Finite mixture model: truncated normal and a normal distribution

[John Sorkin]

I am looking for software that will take data what appears to come from a series of low numbers coming from a left-truncated normal distribution and a series of higher numbers coming from a normal distribution and produce the mean, SD, and mixing proportion of the two source distributions. I have looked at mixtoolsmixtools but it is not exactly what I am looking for as it models two-normal distributions (i.e. the lower of the two distributions is NOT truncated).

Any suggestions for a package, or an analysis plan would be appreciated.

Thank you,
John


John David Sorkin M.D., Ph.D.
Professor of Medicine
Chief, Biostatistics and Informatics
University of Maryland School of Medicine Division of Gerontology and Geriatric Medicine
Baltimore VA Medical Center
10 North Greene Street
GRECC (BT/18/GR)
Baltimore, MD 21201-1524
(Phone) 410-605-7119
(Fax) 410-605-7913 (Please call phone number above prior to faxing) 


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