Re: [R] hierarchical clustering with pearson's coefficient

Anyone for that question? 2013/3/28 Pierre Antoine DuBoDeNa > Hello, > > I want to use pearson's correlation as distance between observations and > then use any centroid based linkage distance (ex. Ward's distance) > > When linkage distances are formed as

[R] hierarchical clustering with pearson's coefficient

Hello, I want to use pearson's correlation as distance between observations and then use any centroid based linkage distance (ex. Ward's distance) When linkage distances are formed as the Lance-Williams recursive formulation, they just require the initial distance between observations. See here:

[R] pearson's correlation and cross-correlation issue

Hello, I want to compute the pearson's correlation, but even for signals that are shifted. For example having two signals like: 1 1 2 1 1 and 1 2 1 1 1 the correlation is very low.. but if we shift them in the right we get much better correlation. I know that cross-correlation is used to find

[R] evaluation clusters

Hello, I was wondering if there is any package with several metrics for cluster estimation (estimating the k=2...10) (or evaluation..). Also if instead of euclidean distance in k-means I use some other kind of distance.. then for those evaluation metrics which takes into consideration the distanc

[R] time-series classification with k-nn

Hello, i am trying to apply k-nn classification for my time-series, however the euclidean distance is not the best choice as the features i use are not all normalized (others have values form 0-1 others are negative etc.) and also it doesn't do any feature evaluation and give different weights to

Re: [R] time-series statistics collection

> Brockwell/Davis (2002): Introduction to Time Series and Forecasting. > Cowpertwait/Metcalfe (2009): Introductory Time Series with R. > Cryer/Chan (2008): Time Series Analysis: With Applications in R. > > for some general introductions of using time series in r. > > > > > >

[R] time-series statistics collection

> > Hello, > > I am trying to collect several global measures or statistics for > time-series as well as packages of R that can compute them. I have found > several of them in papers and books, but the literature is so big i am sure > i am missing several of them. > > skewness > kurtosis > min > ma

[R] time-series statistics collection

Hello, I am trying to collect several global measures or statistics for time-series as well as packages of R that can compute them. I have found several of them in papers and books, but the literature is so big i am sure i am missing several of them. skewness kurtosis min max mean SD trend season