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Could anyone tell me whether there is an R function for removing autocorrelations from a series of observations before performing a linear or nonlinear regression analysis on them? Many thanks, Andrew Wilson
Martin Maechler has pointed out to me that I omitted to include my values for x when circulating my query. They are a simple rank list from 1 to 26: x <- 1:26 Thanks, Andrew
In order to fit a probability distribution proposed by Sichel [Journal of the Royal Statistical Society. Series A (General), Vol. 137, No. 1. (1974), pp. 25-34], I need a modified Bessel function of the 2nd kind. I notice that...
Is it possible to calculate partial sums in R? I have the equation: Px = (k / x) * SUM_{from j >= x to infinity} Pj x=1,2,3,... where k is a parameter, Pj is the Poisson probability, and x is...
Sorry if this is a naive question, but I only started using R last week. I would like to fit a distribution to data which includes a cumulative sum: P(r) = \sum^{V}_{i=r} D e^{-n/i} i...
I am trying to fit a lognormal distribution to a set of data and test its goodness of fit with regard to predicted values. I managed to get so far: > y <- c(2,6,2,3,6,7,6,10...
I am trying to fit a rank-frequency distribution with 3 unknowns (a, b and k) to a set of data. This is my data set: y <- c(37047647,27083970,23944887,22536157,20133224, 20088720,18774883,18415648,17103717,13580739,12350767, 8682289...
On Mon, 6 Jan 2003 ripley at stats.ox.ac.uk wrote: > As is often the case, please tell us what you want really to do (in your > substantive application) rather than for a vague statistical procedure, > and we may...
Many thanks for this pointer. Using the formula from the page you referenced, I now have the formula with the modified Bessel function of the second kind: > x <- c(1,2,3,4,5,6,7,8) > y <- c(1...
Is it possible to convert a data table in "R" to an octave scale (as done, for example, in the MVSP multivariate stats program)? I work with tables of word or category frequencies across a number of texts or text...
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