search for: jwegelin

...lot( yield ~ nitro , data=Oats , scales=list( x=list( at=unique(nitro) ) ) ) Thanks for any insight Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. E-mail: jwegelin at vcu.edu URL: http://www.people.vcu.edu/~jwegelin

...foreign_0.8-29 loaded via a namespace (and not attached): [1] boot_1.2-34 grid_2.8.1 Thanks for any insights. Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. E-mail: jwegelin at vcu.edu URL: http://www.people.vcu.edu/~jwegelin

...o do this? That is, I want to get a key that only mentions the levels of Block that are used in the plot. Thanks Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. E-mail: jwegelin at vcu.edu URL: http://www.people.vcu.edu/~jwegelin

..., return the character strings "x", "y", and "DAT". Thanks for any insights. Jake Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. E-mail: jwegelin@vcu.edu URL: http://www.people.vcu.edu/~jwegelin [[alternative HTML version deleted]]

...tached base packages: [1] splines stats graphics grDevices datasets utils methods base other attached packages: [1] lme4_0.999375-13 Matrix_0.999375-9 lattice_0.17-6 loaded via a namespace (and not attached): [1] boot_1.2-32 grid_2.6.2 > Thanks for any insight. Jacob A. Wegelin jwegelin at vcu.edu Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. http://www.people.vcu.edu/~jwegelin

...27 svn rev 42083 language R version.string R version 2.5.1 (2007-06-27) Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. http://www.people.vcu.edu/~jwegelin jwegelin at vcu dot edu

...we get an error. Has anyone already thought this through, maybe defined a class and associated methods? Thanks Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. E-mail: jwegelin at vcu.edu URL: http://www.people.vcu.edu/~jwegelin

...ed via a namespace (and not attached): [1] Matrix_0.999375-21 boot_1.2-34 grid_2.8.1 lme4_0.999375-28 > Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. E-mail: jwegelin@vcu.edu URL: http://www.people.vcu.edu/~jwegelin [[alternative HTML version deleted]]

...he necessary dimensions of the graphic device that are necessary to accomodate these specs. Thanks for any ideas Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. E-mail: jwegelin@vcu.edu URL: http://www.people.vcu.edu/~jwegelin [[alternative HTML version deleted]]

...s, because the plot will eventually be conditioned on a third categorical variable.) Thanks for any suggestions. Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 730 East Broad Street Room 3006 P. O. Box 980032 Richmond VA 23298-0032 U.S.A. E-mail: jwegelin@vcu.edu URL: http://www.people.vcu.edu/~jwegelin [[alternative HTML version deleted]]

...d plotmath, those eventually had nothing to do with the solution. Jacob A. Wegelin Assistant Professor Department of Biostatistics Virginia Commonwealth University 830 E. Main St., Seventh Floor P. O. Box 980032 Richmond VA 23298-0032 U.S.A. CTSA grant: UL1TR000058 URL: http://www.people.vcu.edu/~jwegelin

I used read.dta() to read in a Stata 9 dataset to R. The "Sex01" variable takes on two values in Stata: 0 and 1, and it is labeled "M" and "F" respectively, analogous to an R factor. Thus, read.dta reads it in as a factor. Now, I wanted to see what this variable *really* is, in R. For instance, sometimes R converts a 0/1 variable into a 1/2 variable when it considers