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4 results for “from:Ricardo Zorzetto Nicoliello Vencio”

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How to create own distance measure in cluster ?

Ricardo Zorzetto Nicoliello Vencio · Jan 30, 2004 · r-help

Hi everyone, I want to create my own distance measure, other than 'euclidean' or 'manhatan', to use in cluster pckgs. To do this I think that I need to change dist(), in mva pckg, or daisy(), in cluster pckg. (or...

constrOptim does ineq, not eq, but who do ?

Ricardo Zorzetto Nicoliello Vencio · Apr 27, 2004 · r-help

Hi everybody, please, could you give me help ? I scanned the help archives and didn't found hints... I want to solve a large sparse linear system subjected to an inequality constrains (all solutions positive) and an equality constrain (all...

constrOptim doesn´t send arguments to optim!(?)

Ricardo Zorzetto Nicoliello Vencio · Oct 29, 2003 · r-help

Hi, I think that there something wrong with the 'constrOptim' max/minimization function because she doesn?t send extra arguments to 'optim' call. Fact: When I use optim in a f(x,theta)-like function, everything goes ok. But using...

I can't make .C(...) web-page example.

Ricardo Zorzetto Nicoliello Vencio · Feb 1, 2004 · r-help

Hi everyone! I'm trying to lear how to call external C code in R but even the R help web-page example is drive me crazy. I copy-paste the example at: http://stat.ethz.ch/R-manual/R...

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