search for: aliscla

Hi R-help, I have a database of 10 students who have written an overall of 78 essays. The challenge? I would like to identify who wrote the 79th essay. Has anybody used R in this context? Even if not, would you suggest me which pattern recognition technique I might possibly apply? Thanks a lot and regards, Tom --------------------------------- [[alternative HTML version

Hi there, The optim(par, fn, ...parscale...) function in R requires 'parscale' which is defined as: "A vector of scaling values for the parameters. Optimisation is performed on 'par/parscale' and these should be comparable in the sense that a unit change in any element (??) produces a unit change in the scaled value". I am just not understanding the

Dear All, While inverting a matrix the following error appears on my console: Error in solve.default(my_matrix) : Lapack routine dgesv: system is exactly singular With this respect, I have been replacing the solve() function with ginv(): the Moore-Penrose generalized inverse of a matrix. These are the questions I would like to ask you: 1. Would you also replace solve() with ginv() in

Dear All, Is this right? > floor((5.05-floor(5))*100) [1] 4 I would expect 5, or am I wrong? Thanks and regards, W --------------------------------- [[alternative HTML version deleted]]

Hi R-Help, I have just downloaded RSPerl_0.7-0.tar.gz under SuSe. If I type owner@linux: ~work> R CMD INSTALL -c RSPerl_0.7-0.tar.gz i get the following error message makedir: cannot create directory '/user/lib/R/library/00LOCK' : Permission denied ERROR: failed to lock directory '/usr/lib/R/library' for modifing I would really appreciate if somebody can help me

...E : andrewr at uidaho.edu PO Box 441133 W : http://www.uidaho.edu/~andrewr Moscow ID 83843 Or: http://www.biometrics.uidaho.edu No statement above necessarily represents my employer's opinion. ----- Original Message ----- From: Werner Bier <aliscla at yahoo.com> Date: Monday, June 13, 2005 9:27 am Subject: Re: [R] kalman filter > yep! please type > ?KalmanLike > or check the dse libraries > Tom > > m p <mzp3769 at yahoo.com> wrote: > Hello, > is there any implementation of Kalman filter in R? > Thanks, &g...

Dear all, I am using the optim() function which it stops with the following error messagge: error in optim(...) non-finite finite-difference value I was wondering if somebody might suggest me a way to fix it please. Thanks in advance to all of you. Kind regards, Tom __________________________________________________ [[alternative HTML version deleted]]

Dear R-help, I was wondering if somebody has a strong opinion on the following matter: Would you see appropriate to apply the leave-one-out cross validation techinque in time series modelling? Thanks in advance, Tom __________________________________________________ [[alternative HTML version deleted]]