[R] Order of terms in formula changes aov() results

4 1523 1406 Now obsid.f only has 3 degrees of freedom and the sum of squares is 0.00. Could this be due to the unbalanced design? If someone can explain this to me I would be very grateful. -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago

[R] Need help with table() and apply()

4 But I really want tables of the rows. Do I have to write my own function to count the numbers of values? Thanks in advance. -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父　 -=- Kernel 3.0.6-gentoo You say yourself it wasn't reproducible. So it could

Re: [R] Need help with table() and apply()

, factors are replaced by their internal codes). Notice the last sentence. 2011/11/20 Stuart Luppescu s...@ccsr.uchicago.edu: Hello, I am having trouble getting counts of values in rows of a data frame. I'm trying to use apply, but it's not working. This gives a sample of the kind

[R] Assignment working differently inside ifelse()

to test for the existence of a row in a data frame? Thanks in advance. -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父 -=-Kernel 2.6.39-gentoo-r3 You can't expect statistical procedures to rescue you

Re: [R] Assignment working differently inside ifelse()

On Tue, 2011-08-16 at 12:10 -0500, Stuart Luppescu wrote: but when I use the ifelse() as above, I get this: [,1] [,2] [,3] [,4] [1,] 0.0417 0.0417 0.0417 0.0417 [2,] 0. 0. 0. 0. Oh, I see. ifelse() returns a value

[R] Stymied by plyr

but with no success. Can someone give me some pointers? Thanks. -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父 -=- Kernel 2.6.36-gentoo-r5 Lars Strand: Will R run under Windows Pocket PC? Brian D. Ripley: We don't know! There are no binary versions of R

Re: [R] Ordering box plots

On Sun, 2011-01-23 at 17:37 -0600, Stuart Luppescu wrote: [snip] Thanks to Ben and Dennis for their help, but right after I sent the original message, I figured out how to solve my problem. I noticed that boxplot() contains the at= argument. To get the box locations, I used a line like

[R] Ordering box plots

) but that didn't do any better. I would think people would want to do this all the time. There must be an easy way to do it but I can't figure it out. Can anyone help me? -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父 -=-Kernel 2.6.36-gentoo

[R] [semi-OT] Using fortune() in an email signature

); } Unfortunately, I don't understand this at all. Can anyone give me a clue as to what's happening? Thanks. -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父 -=-Kernel 2.6.33-gentoo-r2 library(fortunes) fortune() Overall, SAS

Re: [R] [semi-OT] Using fortune() in an email signature

anyway. -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父 -=-Kernel 2.6.33-gentoo-r2 Have you ever wanted to write a book, but not known where to start? Now is a very good time to jump in, because there is currently a very simple

Re: [R] trajectory plot (growth curve)

, Fitting Value-added Models in R, by Harold Doran, is relevant and very useful and interesting. www-stat.stanford.edu/~rag/ed351longit/doran.pdf -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父 -=-Kernel 2.6.33-gentoo-r2 I have

Re: [R] which one give clear picture-pdf, jpg or tiff?

there. Woah. That's really involved. I use this little shell function to convert from ps to png: function ps2png { ps_file=$1 png_file=`echo $ps_file | sed -e 's/\.ps$/.png/'` gs -dQUIET -dNOPAUSE -dBATCH -sDEVICE=png16m -sOutputFile=$png_file -r200x200 $ps_file } -- Stuart Luppescu -=- slu

Re: [R] offlist comment Re: KS Test question (2)

, and helpful contributors to this list. I often wonder how he finds time to post all these enlightening comments and do his own work. You would be better off to take advantage off his advice, and not spurn it. -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文

Re: [R] Multilevel IRT Modelling

Software focusing on psychometrics in R. It has a lot of valuable information. http://www.jstatsoft.org/v20 -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父 -=-Kernel 2.6.33-gentoo-r2 To paraphrase provocatively, 'machine

Re: [R] How to determine if R is 64 bit compiled under Unix-alike?

/exec/R (don't know if this is the same in Ubuntu). File then gives: file /usr/lib64/R/bin/exec/R /usr/lib64/R/bin/exec/R: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped -- Stuart Luppescu -*-*- slu at ccsr dot uchicago dot

Re: [R] How to determine if R is 64 bit compiled under Unix-alike?

/library/MASS/libs/MASS.so /usr/lib64/R/library/MASS/libs/MASS.so: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, stripped -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父 -=-Kernel 2.6.31-gentoo-r6

[R] Conditionally constructing columns in a data frame

. -- Stuart Luppescu s...@ccsr.uchicago.edu University of Chicago __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self

Re: [R] Conditionally constructing columns in a data frame

0.65789 NANA NANA 100 524 215.9634 2.93754 0.37856 0.01297 NANA NANA 100 -- Stuart Luppescu s...@ccsr.uchicago.edu University of Chicago __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r

Re: [R] help in function in R akin to macro in SAS

) } #use the plotxyf function. plotxyf(final.xyf) BTW, I think it's better not to use data as a function parameter, since it has reserved use in the language. -- Stuart Luppescu s...@ccsr.uchicago.edu University of Chicago __ R

Re: [R] SAS and R on multiple operating systems

in ess by highlighting the code and pressing C-c C-r (or C-c C-b to run the whole program). -- Stuart Luppescu s...@ccsr.uchicago.edu University of Chicago __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read

[R] BATCH jobs taking too much resources?

around 1.0. Admittedly, this is a rather big job: lmer with 2,200,000 records crossed by 125,000 students and 10,000 teachers. But I don't understand why it should consume resources so avariciously when run as a BATCH job. Can anyone explain this to me? TIA -- Stuart Luppescu -*-*- slu at ccsr dot

Re: [R] help R IRT simulation

arguments for skewness and kurtosis. kurtosis() functions exist in e1071 and fUtilities, but they only return the kurtosis of the input data. Let me know if you find something. -- Stuart Luppescu s...@ccsr.uchicago.edu University of Chicago __ R-help@r

[R] Omitting members of a sequence

] 64 65 66 67 68 69 70 Just wondering. -- Stuart Luppescu -=- slu .at. ccsr.uchicago.edu University of Chicago -=- CCSR 才文と智奈美の父 -=-Kernel 2.6.30-gentoo-r5 Cordelia: Hi! You having fun? Angel: Sure. This is, uh... Cordelia: Your idea of hell. Angel: Actually, in hell