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2004 Jun 14
2
A Few MCLUST Questions
...ugh a minimum number of clusters can be specified, there doesn’t seem to be any way to limit the number of clusters. I want to do a simulation for a fixed number of components, and thus I would like to avoid the unnecessary computations. Is there any difference between hc(modelName=VVV) and hcVVV or hc(modelName=EEE) and hcEEE, etc.? Likewise, are there any differences between mstep(modelName=VVV) and mstepVVV or mstep(modelName=EEE) and mstepEEE, etc. If not, why do the same functions have different names? --------------------------------- [[alternative HTML version deleted]]
2010 Apr 19
1
What is mclust up to? Different clusters found if x and y interchanged
Hello All... I gave a task to my students that involved using mclust to look for clusters in some bivariate data of isotopes vs various mining locations. They discovered something I didn?t expect; the data (called tur) is appended below. p <- qplot(x = dD, y = dCu65, data = tur, color = mine) print(p) # simple bivariate plot of the data; looks fine mod1 <- Mclust(tur[,2:3]) mod1$G mod2