search for: sibley

...in number of columns in the dataframe hold the results of a series of Likert-type items. I've got a function that will print a simple table of frequencies and I want to apply that function to those columns of the dataframe only. What's the best approach? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...ot operating on the result of the split. > lapply(split(faculty$Q8, faculty$FACULTY), weighted.mean(faculty$Q8, faculty$CETP)) Error in match.fun(FUN) : not function, character, or symbol: "weighted.mean(faculty$Q8, faculty$CETP)" > Any ideas? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

Hi everyone, I want to use the Fisher r-to-z transformation as part of a hypothesis test of r. I can't find an R function that can do that. Am I missing it? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...1.600000 7 STEMTEC 2.428571 8 Temple/Philadelphia 2.750000 9 TxCETP 2.218182 10 VCEPT 2.222222 > mean(a$x) [1] 2.162469 > a <- aggregate(faculty$Q8, list(CETP=faculty$CETP), sd) > mean(a$x) [1] 1.041506 > -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...4 ** Residuals 293 27172.5 92.7 --- Signif. codes: 0 `***' 0.001 `**' 0.01 `*' 0.05 `.' 0.1 ` ' 1 I was expecting the df for YearColl to be (k-1) = 3. Am I reading this right? Is there a way to force integers to act like nominal data? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...I'm very impressed with what I see so far and it's likely that my inexperience with R at this point is making things look harder than they really are. But my approach has always been to jump in with both feet and give it a go. I haven't drowned yet. -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...similar problems before. Readline works perfectly within R. I can't find any documentation on how these package builds work. Where's the Makefile? I looked in the R administration guide, but didn't find the info I was looking for. Any suggestions? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...ed on col1 and col2 so I can report frequencies of the subgroups. So if col1 and col2 can each have two different values, after splitting I should have four vectors based on d$splitcol. Can I do this in one step, or do I need to do some intermediate splitting? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

Software information: R Version 1.5.1 (2002-06-17) ESS 5.1.20 Emacs 21.1.1 Mozilla 1.0 Linux Mandrake 8.2 Colleagues I am having a little trouble installing packages. Having downloaded the gzipped tarball of a package, put it in a /tmp directory, and using this command: [root at localhost /]# R CMD INSTALL -l 'usr/lib/R/library/' '/home/smc/tmp/sgeostat_1.0-18.tar.gz' I

...0.5787563 > sample estimates: > probability of success > 0.55 > > So my answer is that you would need to survey more than 2000 > persons. Is > there a way other than trial and error to solve this? > > -Tim > > -- > Tim Wilson | Visit Sibley online: | Check out: > Henry Sibley HS | http://www.isd197.org | http://www.zope.com > W. St. Paul, MN | | http://slashdot.org > wilson at visi.com | <dtml-var pithy_quote> | http://linux.com > -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...rame: Let's say I've got a dataframe with two vectors, TEST and GENDER. GENDER contains a 1 for males and 2 for females. I want to separate the results of TEST by GENDER so I can compare their means. What's the most efficient way to do this with R? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...iq_prime' apparently, but 'iq' gets changed. Any suggestions? I guess I understand that the function is being run on 'iq', but why doesn't the vector get saved as 'iq_prime'? And how would I do this without modifying 'iq'? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...iq_prime' apparently, but 'iq' gets changed. Any suggestions? I guess I understand that the function is being run on 'iq', but why doesn't the vector get saved as 'iq_prime'? And how would I do this without modifying 'iq'? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

...not equal to 0.5 99 percent confidence interval: 0.5210033 0.5787563 sample estimates: probability of success 0.55 So my answer is that you would need to survey more than 2000 persons. Is there a way other than trial and error to solve this? -Tim -- Tim Wilson | Visit Sibley online: | Check out: Henry Sibley HS | http://www.isd197.org | http://www.zope.com W. St. Paul, MN | | http://slashdot.org wilson at visi.com | <dtml-var pithy_quote> | http://linux.com -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-...

Dear R People I have a function that I wrote. It's not part of a library, it's just a nice function. However, I would like to have a "Help" page for it. How do I go about doing that please? Thanks so much in advance! R version 1.5.1 for Windows. Sincerely, Erin -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

...can thus be assigned (e.g., tree <- write.tree(phy)). o The function read.tree() has a new argument `text' which allows to read the tree in a variable of mode character. o A new data set is included: the phylogenetic relationships among the orders of birds from Sibley and Ahlquist (1990).