introducing R
Dear friends, I want to start using the R package for my postgraduate students in Research Methods courses and also in Quantitative Methods courses. I am also considering using it for my undergrads as well. The point is, not all of my colleagues agree. They are afraid that it may be too non-friendly for the students. What is more, I need material in Greek. Please, do you have bright examples of how it is used in other Universities (in English or in Greek) with undergrads or postgrads? What material do you use (e.g. notes, books etc). How do you use it? What User Interface do you use? Thank you Dr. Iasonas Lamprianou Assistant Professor (Educational Research and Evaluation) Department of Education Sciences European University-Cyprus P.O. Box 22006 1516 Nicosia Cyprus Tel.: +357-22-713178 Fax: +357-22-590539 Honorary Research Fellow Department of Education The University of Manchester Oxford Road, Manchester M13 9PL, UK Tel. 0044 161 275 3485 iasonas.lamprianou at manchester.ac.uk
--- On Sat, 17/10/09, r-sig-teaching-request at r-project.org <r-sig-teaching-request at r-project.org> wrote:
From: r-sig-teaching-request at r-project.org <r-sig-teaching-request at r-project.org> Subject: R-sig-teaching Digest, Vol 26, Issue 4 To: r-sig-teaching at r-project.org Date: Saturday, 17 October, 2009, 11:00 AM Send R-sig-teaching mailing list submissions to ??? r-sig-teaching at r-project.org To subscribe or unsubscribe via the World Wide Web, visit ??? https://stat.ethz.ch/mailman/listinfo/r-sig-teaching or, via email, send a message with subject or body 'help' to ??? r-sig-teaching-request at r-project.org You can reach the person managing the list at ??? r-sig-teaching-owner at r-project.org When replying, please edit your Subject line so it is more specific than "Re: Contents of R-sig-teaching digest..." Today's Topics: ???1. Breusch-pagan and white test - check??? homoscedasticity ? ? ? (Gautier RENAULT) ---------------------------------------------------------------------- Message: 1 Date: Fri, 16 Oct 2009 21:36:47 +0200 From: Gautier RENAULT <renault.gautier at gmail.com> Subject: [R-sig-teaching] Breusch-pagan and white test - check ??? homoscedasticity To: r-sig-teaching at r-project.org, r-help at r-project.org Message-ID: ??? <5bfb4a970910161236j2e3f23b1nd3276e87f38886f1 at mail.gmail.com> Content-Type: text/plain Hi r-programmers, I performe Breusch-Pagan tests (bptest in package lmtest) to check the homoscedasticity of the residuals from a linear model and I carry out carry out White's test via bptest (formula, ~ x * z + I(x^2) + I(z^2)) include all regressors and the squares/cross-products in the auxiliary regression. But what can I do if I want find coefficient and p-values of variables x, z, x*z, I(x^2), I(z^2) ? **I wish find out which is responsible of heteroscedasticity... Can anyone help? thanking you in advance, Gautier RENAULT ??? [[alternative HTML version deleted]] ------------------------------
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