similar to: Constrained optimisation

Hello, Is there a package that implements the Cochrane-Orcutt itterative procedure for dealing with autocorrelation in a regression model? Thanks, John. -- ========================================== John Janmaat Department of Economics Acadia University, Wolfville, NS, B0P 1X0 (902)585-1461 All opinions stated are personal, unless otherwise indicated.

Hello, I am trying to get a time derivative on a plot title. I prefer to have it in the form \dot{s_i}, but \partial s_i/\partial t would be O.K. In the graphics demo I cannot find either a dot or a partial equivalent. Thanks, John. -- ========================================== John Janmaat Department of Economics Acadia University, Wolfville, NS, B0P 1X0 (902)585-1461 All opinions stated

Hello, I have a linear model with different slopes for different treatment groups. I need to pairwise compare the different slope estimates for the different treatment groups. Is there a package that does pairwise comparisons of slope coefficients, making the appropriate adjustments in the P values? Thanks, John. -- ========================================== John Janmaat Department of

Hello, I am looking for a routine to do a logistic regression. In the book "Modern Applied Statistics with S-PLUS" a function is described which uses the 'ms' command. Is there an analogue for R, or an alternative approach that can accomplish the same thing? Thanks, John. -- ========================================== John Janmaat Department of Economics Acadia

Hello, I'm playing around with cluster analysis, and am looking for methods to select the number of clusters. I am aware of methods based on a 'pseudo F' or a 'pseudo T^2'. Are there packages in R that will generate these statistics, and/or other statistics to aid in cluster number selection? Thanks, John. --

Hello All, I am drawing four contour plots on a 2x2 layout. I need to downsize the contour line labels. cex and labcex do not seem to work. Any suggestions? Thanks, John. -- -------------------------------------------------------------------------- Dr. John Janmaat Department of Economics, Acadia University, Wolfville, NS, B4P 2R6 E-mail: jjanmaat at acadiau.ca Web:

Hello All, I'm looking to test a variable in a logit model (glm(..., binomial(link="logit"))) for exogeneity (endogeneity). At this point I am planning to try implementing Jeffery Grogger's "A Simple Test for Exogeneity in Probit, Logit, and Poisson Regression Models", Economic Letters, 1990. To do this, I need to be able to do an instrumental variables NLS

Hello All, Is there a fast way to find the index(row and column) of a point in a matrix? Thanks, John. -- -------------------------------------------------------------------------- Dr. John Janmaat Department of Economics, Acadia University, Wolfville, NS, B4P 2R6 E-mail: jjanmaat at acadiau.ca Web: http://ace.acadiau.ca/~jjanmaat Tel: 902-585-1461 Fax: 902-585-1070

Hello All, Is there an analogue to \underbar or the AMS math \underline in graphical math expressions? Thanks, John. -- ===================================================================================== Dr. John Janmaat Department of Economics Acadia University Wolfville, Nova Scotia, Canada B4P 2R6 TEL: 902-585-1461 WWW: http://ace.acadiau.ca/~jjanmaat/ EMAIL: jjanmaat at acadiau.ca June

Hello, I have a system of quadratic equations (results of a Hamiltonian optimization) which I need to find the roots for. Is there a package and/or function which will find the roots for a quadratic system? Note that I am not opimizing, but rather solving the first order conditions which come from a Hamiltonian. I am basically looking for something in R that will do the same thing as fsolve in

Hi, I am out of town and will get back to you on the 13th of July. Leo >>> "r-help at stat.math.ethz.ch" 06/27/03 00:32 >>> Send R-help mailing list submissions to r-help at stat.math.ethz.ch To subscribe or unsubscribe via the World Wide Web, visit https://www.stat.math.ethz.ch/mailman/listinfo/r-help or, via email, send a message with subject or body

I am trying to download the R program, but am having trouble. I have read through the instructions, but do not seem to be able to do it properly. Can you tell me the step-by-step instructions? Joanne L. Butler, Post-doctoral Fellow Equity and Technology Research Project c/o Department of Sociology Acadia University Wolfville, N.S. B4P 2R6 phone (902) 585-1535 fax (902) 585-1769

I'd like to announce the availability of a new library for hybrid hierarchical clustering, "hybridHclust". The library has been uploaded to CRAN and is now available. The library implements a hybrid of top-down and bottom-up hierarchical clustering. Along the way, the idea of a "mutual cluster" is developed. A mutual cluster is a set of observations whose largest

I'd like to announce the availability of a new library for hybrid hierarchical clustering, "hybridHclust". The library has been uploaded to CRAN and is now available. The library implements a hybrid of top-down and bottom-up hierarchical clustering. Along the way, the idea of a "mutual cluster" is developed. A mutual cluster is a set of observations whose largest

Hello, I've just downloaded and installed the RAqua onto my Mac and I have R up and running fine. Now I'm trying to get 'ape' downloaded and installed and having quite the difficulty. I am following the directions specified under 'Installing packages' where packages can be downloaded and installed from within R. I get the following error messages: 1: argument

Hello, I'm trying to assess the similarity of two lines that are represented as points (output of differential equation solvers). Is there a function or a package that deals with things like this? Thanks, John. ==================================================== Johannus (John) Janmaat Assistant Professor of Economics Barber School of Arts and Sciences University of British Columbia -

Hi There, I'm working on some cluster analyses on a large data-set using hclust with Wards method and Manhattan (city block) distance measures. I've created dendrograms to illustrate the clustering criteria, but would like to create a plot to examine for the classic elbow criterion to use in determining the best number of clusters. Ideally I'd like to plot percent variance explained

Hi. I am running the as.ltraj () function in adehabitat (v 1.4 under R 2.2.1) but can't seem to correctly specify the burst argument. i.e., the ltraj object returned consists of only one component, when in fact my data consist of more than one burst of reloctions per animal. i've set up the data (xy, date, id, burst) in list form following the example given in ?as.ltraj. to simplify,

But, following the instructions, I get: eris:/usr/slocal/samba/bin> ./smbpasswd -j ACADIA -r pdc.acadiau.ca attempt_netbios_session_request: PDC.ACADIAU.CA rejected the session for name *SMBSERVER. Segmentation fault GDB shows: eris:/usr/slocal/samba/bin> gdb !$ core gdb smbpasswd core GNU gdb 4.17 Copyright 1998 Free Software Foundation, Inc. GDB is free software, covered by the GNU

Morning... Attached are two files. The first (smb.session) shows one user connecting to two different shares on a remote server using *no* password... The second is the smb.conf file found on that remote server, running Solaris 2.6, and Samba 2.0.3 ... I'm *really* hoping that its something that we're overlooking as far as configuration is concerned...or else there is one helluva