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Dear all, is there a way to extract individual likelihoods from a glm/lrm object? By individual likelihoods, I mean the likelihoods whose product give the overall likelihood of the model. I guess the code in the base package, used...
Hi, I'm clustering objects defined by categorical variables with a hierarchical algorithm - average linkage. My distance matrix (general dissimilarity coefficient) includes several distances with exactly the same values. As I see, a standard agglomerative procedure ignores this problems, simply...
Hi, I'm trying to figure out some stastistics for non-nested models testing. Among them: [1] Vuong statistic (Vuong, 1989) [2] Distribution-free test by Clarke (2003). Did someone wrote a piece of [R] code to compute any of...
Hi, I'm trying to debug a function I wrote to calculate the cindex for a hierarchical tree. For this it is useful to compare my calculations with those in output from the clustindex function, in the cclust library. There...
What I did was, in presence of equal values distances, to randomize the selection of them, and compute the distortion of the solution using cophenetic correlation. I computed 10000 "random" trees for each of three methods: average, single and complete...
> You did not tell us the value of x. :-) x is an even integer (6,8,10). With x=6, you get alpha=0.008333333,[default values],0.9916667 This is the reason for why the result I get sometimes...
Hi, I'm trying to debug a function I wrote to calculate the cindex for a hierarchical tree. For this it is useful to compare my calculations with those in output from the clustindex function, in the cclust library. There...
Hallo, I'm using bcanon to get bootstrap confidence intervals. I need to modify the default confidence levels (alpha=c(0.025, 0.05, 0.1, 0.16, 0.84, 0.9, 0.95, 0.975)), adding two more extreme...
If anybody had the same problem I had in calculating the cindex with the clustIndex function (binary data), replace this line of code: if (length(unique(x))==2) with this one: if (length(unique(as.vector(x)))==2) located in...
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