search for: mackinnon

Hi, after looking around I was not able to get info about these two questions: 1. Is there a function to have a "jackknifed corrected var/cov estimate" (as described in MacKinnon and White 1985) in a standard OLS regression? 2. Does R possess a LAD (Least Absolute Deviation) regression function? Any help? Thanks -- ======================================================== Angelo Secchi PGP Key ID:EA280337

Does anyone have an R function for the estimation of Tobit regression models (for censored responses), as described, e.g., in Davidson, R. and MacKinnon, J.G., 1993, Section 15.7, Estimation and Inference in Econometrics, Oxford University Press? Thanks. FC. -- Francisco Cribari-Neto voice: +55-81-32718420 Departamento de Estatistica fax: +55-81-32747425 Universidade Federal de Pernambuco e-mail: cribari at de.ufpe.br...

Full_Name: James MacKinnon Version: Version 1.0.0 OS: Debian 2.1 Submission from: (NULL) (24.141.113.138) I am a novice at R, so I am not totally sure that this is a bug, but I think it must be. When I type help.start() or ?help, Netscape starts up, as it should, but it displays my normal home page, not any help for R. The...

Hello, My name is Christian Falde. I am new to R. My problem is this. I am attempting to learn R on my own. In so doing I am using some problems from Davidson and MacKinnon Econometric Theory and Methods to do so. This is because I can already do the some of the problems in SAS so I am attempting to rework them using R. Seemed logical to me, now I am stuck and its really bugging me. The problem is this Generate a data set sample size of 25 with the formula...

...S,med=LEAD,out=WBEING,grpid=GRP)) The package estimates three regression models according to standard-mediation-analysis-operating-procedure. Each model has one intercept and one/two slopes. Question 1) Does ?sobel.lme? estimate: a) random intercept, fixed slope(s) ? as in for example Krull & MacKinnon (2001) Multilevel Modeling of Individual and Group Level Mediated Effects b) random intercept, random slope(s) ? Does not necessarily involve a predictor for the slope on level 2 ? as this would be phrased moderation rather then mediation (potential matter of dispute, though?). c) fixed intercept,...

Is there an option for running SUR and 2SLS regressions with weighting (I am analysing mortality in towns, hence want to weight by population size) Many thanks Jon Anson -- Yonathan (Jon) Anson Department of Social Work Ben Gurion University of the Negev 84105 Be'er Sheva, Israel. Tel: +972 8 647 93 14(w) +972 8 6489286 (h) 067 233279 (m) Fax: +972 8 647 29 33

Okay, I've read as much as I can, and I think i've followed instructions, but I'm still having problems with * and firefly... I can get outgoing to other freshtel working, but not incoming (I get the "not available" voicemail), or outgoing to landline. I'm using the debian asterisk package (0.9.1-RC1-4) My iax.conf has in general (under my FWD register, which

Hi All, Is the Levenberg-Marquardt algorithm available in R. This method combines the steepest descent algorithm and Newton's method. Thanks in Advance, Dermot MacSweeney. ************************************************************** Dermot MacSweeney NMRC, Email: dsweeney at nmrc.ucc.ie Lee Maltings, Tel: +353 21 904178 Prospect Row, Fax: +353 21 270271 Cork, WWW:

Hi guys. Quite happy with mocha for testing. It''s been a bit of an eye opener for me, and I expect to begin using it heavily. One other thing I''d like to do is stub out particular class methods in development. Is there a way I can do this with mocha? Jason

OK, so i''ve played a bit with mocks and mock_models in controller and view tests and i have a question. Is this statement really correct: "We highly recommend that you exploit the mock framework here rather than providing real model objects in order to keep the view specs isolated from changes to your models." (http://rspec.rubyforge.org/documentation/rails/writing/views.html