similar to: adding variables to a data set/combining two data sets

Greetings: I am looking for some help (probably really basic) with looping. What I want to do is repeatedly sample observations (about 100 per sample) from a large dataset (100,000 observations). I would like the samples labelled sample.1, sample.2, and so on (or some other suitably simple naming scheme). To do this manually I would >smp.1 <- sample(100000, 100) >sample.1 <-

Dear R-helpers: May I ask a question related to storing a number of lmer model fit into a list. Basically, I have a for-loop (see towards the bottom of this email) in the loop, I am very sure that the i-th model fit (i.e.,fit_i) is successfully generated and the character string (i.e., tmp_i) is created correctly. The problem stems from the following line in the for-loop #trouble making line

hello there ! I have one problem. We have a catalogue on a CD which is being used frequently so it's copied on a Novell network. But now we have to move it on a Samba box. But when two (or more) users try to run it, the second user (and all the rest) gets a message that the program couldn't access one file. The first user runs it perfectly. Here is a snippet from a log file: =cut=

Greetings does anyone know of an R package that can do quantile regression with instrumental variables. I've found 'sem' for IV estimation and 'quantreg' for quantile regression but I would like to find something that can do a quantile regression with instrumental variables. Cheers, Neil ============================================= Neil Hepburn, Economics Instructor

Full_Name: Neil Hepburn Version: 2.81 and 2.90 OS: OS-X 10.5.6 Submission from: (NULL) (142.244.28.93) When I create graphs using Rcmdr and then close the quartz display, R blows up and tells me of a segmentation fault. It then gives me *** caught segfault *** address 0xc0000023, cause 'memory not mapped' Possible actions: 1: abort (with core dump, if enabled) 2: normal R exit 3: exit

can you recommend a good manual for R that starts with a data set and gives demonstrations on what can be done using R? I downloadedR Langauage definition and An introduction to R but haven't found them overly useful. I'd really like to be able to follow some tutorials using a dataset or many datasets. The datasets I have available on R are Data sets in package 'datasets':

I've sometimes thought it would be useful to have another mail list called "no I haven't read the documentation but someone can save me a lot of time," or perhaps just "newbie" for short. This can be very useful for people just getting started in R and with school starting soon I expect the help list may become overwhelmed. Of course, I think that people should read all

Dear All, I'am looking for examples showing that correlation does not imply causality, the targeted audience consists of undergraduate students (their first year at the university but in the BioMathStat track). All practicals are under R. I was able to extract this from R datasets: ### begin data(sunspots) data(lynx) spots <- window(sunspots, freq = 1, start = 1880, end = 1900) lnx <-

-----Original Message----- From: samba@samba.org <samba@samba.org> To: Multiple recipients of list SAMBA <samba@samba.org> Date: Saturday, July 24, 1999 12:40 PM Subject: SAMBA digest 2178 > SAMBA Digest 2178 > >For information on unsubscribing see http://samba.org/listproc/ >Topics covered in this issue include: > > 1) strange share violation > by

I am trying to fit the 4-parameter logistic model with SSfpl. The estimation is terminated with a message "step factor 0.000488281 reduced below 'minFactor' of 0.000976562". I tried to change the minFactor with nls.control(minFactor=yy) with no apparent success. A call of nls.control() without arguments always shows the value of 0.000976562. Also the estimation terminates as

This is a question relating to the Trellis function in R. I have a set of socioeconomic data that I would like to display with the xyplot() function for several states. I will have a total of 6 plots, with the y-variable as "Age Group", and the x-variable as "Median Income". Suitability of the plots aside (this cannot be changed), I need to plot the points of one of the states

Please distribute. Interested individuals can view the full position announcement and apply at: https://ejobs.umd.edu/postings/29966 Title: Research Associate Functional Title: Research Educator Position Summary/Purpose of Position: The First-Year Innovation & Research Experience (FIRE) is a new major initiative at the University of Maryland, College Park. FIRE provides first-year

This is maybe not directly an R problem but I have used R to try to solve it so I think somebody may be able to help. I have a mixture model with three components and a quadratic Scheffe polynomial p1x1+p2x2+p3x3+p12x1x2+p13x1x3+p23x2x3 fitted to the response. Now I'd like to compute the mixture corresponding the maximum response. Model for Y1 has the parameters p1=124.02 p2=60.973 p3=41.479

Hi Michael, with res.uc$conf you'll get the single configurations for each rater. You can use these to produce the plot you want to have. Best, Patrick r-help-request at r-project.org wrote: > Send R-help mailing list submissions to > r-help at r-project.org > > To subscribe or unsubscribe via the World Wide Web, visit > https://stat.ethz.ch/mailman/listinfo/r-help >

Hi! I''d like to make ajax request after effect fade finishes. There''s a callback in Effect class - afterFinish, but it requires the code to be in function() {*here*}. When i write :afterFinish => remote_function() it generates following javascript code: afterFinish: new Ajax.Updater() and i need: afterFinish: function() {new Ajax.Updater()} How can i do it? I need to

Hi all, I need to model simple typed polymorphic relations: ''John'' [''works_for''] ''Bill'' ''John'' [''speaks_for''] ''Microsoft'' ''Microsoft'' [''hold_shares_of''] ''Apple'' I''m having a hard time combining : - S.T.I.

I am looking for a solution to take 4 or more ADSL lines with PPPoE and a Static IP and then have my Local network behind them. I was reviewing http://lartc.org/howto/lartc.rpdb.multiple-links.html and it looks like a good solution. How can the document be modified to do NAT from the local network? I would need the local network to be NATed to the WAN. How can I set it up so that the

Being a person that loves speed, I enjoyed hearing that I could combine the rules to use multiport. So I thought that it would be cool to have a option for Shorewall to do this for me. For instance, after reading the rules, and having a configuration item set, my independent rules would be combined to use multiport. I would love to write Allow* rules, and have them combined.

Dear All A new non-linear mixed-effects modelling package for R called nlmeODE is now available at www.cran.r-project.org and http://nlmeODE.sourceforge.net. It combines Pinheiro and Bates' NLME library in R with an ordinary differential equations (ODE) solver thereby enabling the use of differential equations in population PK/PD modelling. It includes several PK examples such as one- and

Is there a cleaner way of combining two expressions. This example works and gives what I want plot(1:10) aa <- expression(alpha==.05) bb <- expression(beta ==.80) aabb <- expression(alpha==.05 ~ ", " ~ beta ==.80) text(5, 10, aa) text(5, 9, bb) text(5, 8, aabb) text(5,1, parse(text=paste(deparse(aa[[1]]), deparse(bb[[1]]), sep="~"))) text(5,2,