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5 results for “from:liu qin”

How to calculate Ln(x) value and Exp(Ln(x)) value in R?
liu qin · Dec 23, 2004 · r-help

Hi, there: Does anybody know how to calculate Log value as Ln() and Exp( ) value in R please? Many thanks Qin

Nearest Neighbour for prediction
liu qin · Feb 22, 2004 · r-help

Does anybody know how to use nearest neighbour in R to predict anything? I am stuck here. I would be really really grateful if anyone could help. Thank you for the help. Qin Ph.D. Student U.K.

KNN one factor predicting problem
liu qin · Mar 15, 2005 · r-help

Could anybody help me out please? > cl<-as.factor(traindata[,13]) > knn(traindata[1:295,2], newdata[1:32,2], cl,k=2, prob=TRUE) Error in knn(traindata[1:295, 2], newdata[1:32, 2], cl, k = m, prob...

how to plot multi- lines on one diagram
liu qin · Feb 22, 2004 · r-help

Hello there: I got a matrix as data1, I do need to plot each column and illustrate them as 4 lines on the same screen. Would anybody help me out please? > data1 [,1] [,2] [,3] [,4] [1,] 94.35 60...

Nearest Neighbour for prediction
liu qin · Feb 22, 2004 · r-help

Andy: So, what do you think about Gest{spatstat} or knearneigh{spdep} as they both claimed they are the functions to calculate the nearest neighbour distance? Qin --- "Liaw, Andy" <andy_liaw at merck.com> wrote: > Try: > > library(class) > ?knn > example...

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