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Hello, I'd like to know if the euclidean distance calculation is: sqrt(sum(delta^2)) or (sqrt(sum(delta^2)))/(nb of descriptors) or else... Merci beaucoup, Nicolas Baurin -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac...
Hello to the R community, which dataset(s) available in R is suitable to test the quality of a classification tool ? Thansk in advance, -- Nicolas Baurin Doctorant Institut de Chimie Organique et Analytique, UPRES-A 6005 http://www.univ-orleans...
Hello, i'm looking for the procedure to generate a random number between 0-1. Try rnorm() but can't get to do generate between 0-1 thanks(i'm sur it's easy) -- Nicolas Baurin Doctorant Institut de Chimie...
Hello to all R people, for the application of a function to each column of a matrix (ex: function sum()), i'd like to know if there is a simpler (and faster) alternative to a loop like : for (i in...
Hi everybody, i try to install the R 1.0.1 on a mips-sgi-irix6.2 system. The configure seems ok : it ends with - souce directory : . - installation dircetory : /usr/local - C compiler : cc -g - Fortran compiler : fort77 - Gnome support...
Hi R people, i'm looking for the Reciprocal Nearest Neighbour algorithm applied to Ward clustering; I know that it is explained in details in the following book: Downs, G. M.; Willett, P. In Advanced Computer-Assisted Techniques in Drug...
Helle R people, here's my slightly out of range question: i am in c code (dll call from R - passing a matrix as double * data, int * row and int * col). In C/C++, i'd like to handle this...
Bonjour R people, Before to use "complex" c++ code under R (win95), i'm trying to import the c++ code that is in R-exts.pdf (section3.5). I'm using Visual C++ 5.0. So i've created a...
Hello to the R people, within ward clustering the distance calculated to decide the clustering of 2 subsets (h1 and h2) is the variation of inertia : d(h1,h2)=I(h1Uh2)-I(h1)-I(h2); i've been said that...
Hello to all of you, What i try to do : i got data of the type (x,y) which i plot with plot (x,y). i want to actualise that plot adding new points (x,y) (i did it with...
Hello R people, i'm trying to implement the Partial Least Squares algorithm called SAMPLS from "J.Comp-Aided Molecular Design", 7 (1993), 587-619. It's faster than the classical PLS algorithm for fat matrix (m>>n). Here's...
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