search for: rmix

hi all! i want to mix a dataset that is build up from 2 distribution: an exponential and a normal. I can' figure out how can i use Rmix package to do the fitting of my data. Pheraps it si the wrong package? any suggestion? thanks, nelson

...pointers on. I have a dataset that is approximately normally distributed but with a fat left tail. I am interested in a good measurement on how much fatter the left tail is than can be expected from a normal distribution. One thing I'll tried was fitting a two component mixture model with the Rmix package but i am also interested in other ideas. Now to my question. I would like to calculate how many observations are "outside" the normal distribution on the left side. I want to do this by fitting a normal distributions and then use the proportion of observations not inside the bell...

Recently, I have been working with some data that look like two overlapping gaussian distributions. I would like to either 1) determine the mean and SD for each of the two distributions OR 2) get some (bayesian ?) statistic that estimates how likely an observation is to belong to the left-hand or right-hand distribution In case I'm using the wrong language, my data looks something like

Hi all, I'm giving a talk in a few days to a group of psychology faculty and grad students re the R statistical language. Most people in my dept. use SAS or SPSS. It occurred to me that it would be nice to have a few concrete examples of things that are fairly straightforward to do in R but that are difficult or impossible to do in SAS or SPSS. However, it has been so long since I have used