search for: reitsma

Dear All, I'm hoping one of you can help me with the following R problem. I'm trying to refer to a member of a list by variable. However, this seems not to work: foo=list(first=c(1:10),second=c(11:20)) > foo$first [1] 1 2 3 4 5 6 7 8 9 10 > foo$"first" [1] 1 2 3 4 5 6 7 8 9 10 > goo=c("first") > foo$goo NULL > foo$goo[1] NULL

...ever there is a paticular analysis that I wuould like to try that it is not implemented in this software. I looked in R for meta-analysis functions but the packeges available dont work with diagnostic tests. Im trying for a while to adapt in R a function develped in SAS and published in "J.B. Reitsma et al. / Journal of Clinical Epidemiology 58 (2005) 982?990", wich is a bivariate approach to meta-analysis of diagnotic tests. Since I do not have any experience with SAS, Im having a hard time trying to do so. There is an appendix at the original text with some step by step (in SAS syntax...

...Product: xorg Version: git Platform: x86-64 (AMD64) OS/Version: Linux (All) Status: NEW Severity: major Priority: medium Component: Driver/nouveau AssignedTo: nouveau at lists.freedesktop.org ReportedBy: j.reitsma at concepts.nl QAContact: xorg-team at lists.x.org In reaction of https://bugzilla.novell.com/show_bug.cgi?id=707110, comment #6 from Johannes Obermayr, I added repo http://download.opensuse.org/repositories/home:/jobermayr/openSUSE_Factory to the list of repositories, and installed t...

Hello, Is there anyone who could give me an example of how to import an ascii grid (i.e. ArcGIS exported raster) into R. I want to use it with gstat but don't know the appropriate import routine. Thanks very much for your help. Regards, femke Femke Reitsma Graduate Student (ABD) Geography Department 2181 LeFrak Hall University of Maryland College Park, MD 20742 Phone: 301-405-4121 E-mail: femke@geog.umd.edu http://www.glue.umd.edu/~femke/ [[alternative HTML version deleted]]

Dear All, I just updated from Fedora 9 to Fedora 11, kernel version 2.6.29.5-191.fc11.i586. I'm running R 2.9. I successfully installed package Rstem from source (it always ran fine for me in F9). However: > wordStem(c("This","is","a","test")) Error in wordStem(c("This", "is", "a", "test")) : VECTOR_ELT()

CRAN (and crantastic) updates this week New packages ------------ * bisectr (0.0.2) Maintainer: Winston Chang Author(s): Winston Chang <winston at stdout.org> License: GPL-2 http://crantastic.org/packages/bisectr Tools to find bad commits with git bisect * CUMP (1.0) Maintainer: Xuan Liu Author(s): Xuan Liu <liuxuan at bu.edu> and Qiong Yang <qyang at bu.edu>