similar to: Cluster Analysis - Number of Clusters

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, 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, 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, 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

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 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

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

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

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

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

Hello, I need to solve a non-linear optimization with non-linear constraints. The 'nlm' routine does not seem to allow constraints. Is there a package for solving such problems in R? Thanks, John. -- ========================================== John Janmaat Department of Economics Acadia University, Wolfville, NS, B0P 1X0 (902)585-1461 All opinions stated are personal, unless

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

I just tried, on a whim, to use an OpenSSH client vs SSH 1.2.26 client, and I can connect with it... Something drastic change between pre23 and pre24? Then again, I can't get pre23 to work anymore either, after further investigation :( OpenSSH clients connect no problem, just not the old SSH 1.2.26 clients ... Marc G. Fournier marc.fournier at acadiau.ca

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

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

I don't remember what we did to fix this last time, and I've had to rebuild my system completely from scratch over the past few days, so dont' have past patches to work from ... new-relay:/usr/slocal/src/openssh-1.2pre15> make gcc -g -O2 -Wall -I/usr/slocal/include -DETCDIR=\"/usr/local/etc/ssh\" -DSSH_PROGRAM=\"/usr/slocal/bin/ssh\" -DHAVE_CONFIG_H -c

in packet.c:packet_read_poll(), stored_checksum is an unsigned int, but GET_32BIT is returning an unsigned long ... Or isn't it? Marc G. Fournier marc.fournier at acadiau.ca Senior Systems Administrator Acadia University "These are my opinions, which are not necessarily shared by my employer"

Compiled great, got both my RSA and DSA keys' generated for Protocol 1/2, started up fine ... try to connect and get a bunch of errors: May 11 14:01:47 iris sshd[8578]: error: Couldn't wait for child '/bin/ls -alni' completion: No child processes May 11 14:01:47 iris last message repeated 3 times May 11 14:01:47 iris sshd[8578]: error: Command '/bin/ls -alni': select()

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I have just uploaded 1.2.1pre18. This is mainly merges from the OpenBSD tree, bugfixes for Solaris and libc5 Linux systems. It should fix all reported bugs except the snprintf problems on some older Solaris versions. Please test thoroughly, my hope is to have a stable version released before Jan 1. At this point the main holdup is Solaris. I have