similar to: a question regarding s-plus libraries and R

Dear listers, I have two questions: (1) Is there a way in R to change the base-n of the calculations. I wnat to run some calculations either in binary (base-2) or base-4. Is there a way to specify that in R - to chnage from the decimal? (2) I also want to extract the digits from a larger number and store them as a vector. I could do it through converting top string, parsing the string and

Dear listers, I must first say that all the suggestions and help I got from the list so far was of great help to my work. I approach you with another question. Is it possible to generate an automatic specification of the formula for lme (or other models in R)? Let me clarify. I'm using models in a simulation run and can have variable number of variables in the data. I would like to generate

HI all, I might add some more information in order to possibly solve my problem. I'm really stuck and no obvious solutions do the trick. I'm using R 1.7.1 on Windows 2000 with the packages regurarly updated. I'm using hypothetical data constructed as a pseudo population conforming to a certain Var-Cov structure. I might add that just > predict(level2) works. But when I add the

Dear listers, I can't find the variance or se of the coefficients in a multilevel model using lme. I want to calculate a Chi square test statistics for the variability of the coefficients across levels. I have a simple 2-level problem, where I want to check weather a certain covariate varies across level 2 units. Pinheiro Bates suggest just looking at the intervals or doing a rather

Dear listers, First let me appologize if the same mail arrives multiple times. Recently I had some probelms sending my e-mails to the list. I encountered a problem when running glmmPQL procuedure doing multilevel modeling with a dichotomous outcome. Those are the two error messages I usually get: Error in logLik.reStruct(object, conLin) : NA/NaN/Inf in foreign function call (arg 3)

Hi listers, In light with the recent discussion on the optimizing the use of memory in straneous proceudres i present you m problem, and hope to some additional ideas. I'm running a simualtion that in each step uses quite an amount of memory (but not exceedingly) - just to give you an idea - I create a pseudo population (n=1000, m=3) run lme and lm model and multiply impute (M=5) and do the

Dear listers, I experinced a problem prdicting the values using the LME with multilevel data. I have NA's in my dependent variable and the model is fitted only on the completed cases. I want to estimate the predicted values for the rest of the data (those cases with missing dep. variable) I extracted a subset from the original file containing the variables used in the model as well as the

Dear listers, I would like to get the bootstrap estimates form my lme model. I have an HLM (multillevel) 2-level model with the dichotomous outcome. I used glmmPQL procedure. However I have a problem since I have a rather unbalanced proportion (90-99% of events, i.e. ones and only 1-10% of nonevents - zeros) although sample sizes are not that small between 500 and 1000 I get pretty weird and

I've got a PhD student starting this year. She'll be working on data mining. She has asked for a reading list while she's still in her home country, which is a really good sign. Her cosupervisor and I don't (think we) have any problem with choosing things that are specifically about data mining, but there are some statistical ideas (sampling, exploratory-vs-confirmatory,

Hi , I am programming on a windows system and have problems using notepad which is my main editor.Each time I try to open the editor from the R IDE, R crashes. So I always have to copy my codes from notepad and paste in R to run them. CAn someone tell me if I am doing anything wrong or is there a better editor(freeware) which I could get. thanks cilver ===== ===================== Sylvie B.

Hi! I'm pretty raw when working with the R models (linear or not). I'm wondering has anybody worked with the NLME library and dichotomous outcomes. I have a binary outcome variable that I woul like to model in a nested (multilevel) model. I started to fit a logistic model to a NLS function, but could not suceed. I know there are better ways to do it in R with either the LRM or GLM wih

We are trying to compile and run the ttest.c example that comes with R (in C:\Program Files\R\rw1081\src\library\windlgs\src\ttest.c). After compiling it with MS Visual C++ we load the DLL with dyn.load. So far it seems good, but when we try to call it from R (after running C:\Program Files\R\rw1081\src\library\windlgs\R\windlgs.R) R crashes. We have tried changing the exports from DLL but have

Dear List, I have a table i have read into R: Name Yes/No John 0 Frank 1 Ann 0 James 1 Alex 1 etc - 800 different times. What i want to do is shuffle yes/no and randomly re-assign them to the name. I have used sample() and permute(), however there is no way to do this 1000 times. Furthermore, i want to copy the data into a excel spreadsheet in the same order as the data was input so i can

I'm using the survey api. I am taking 1000 samples of size of 100 and replacing 20 of those values with missing values. Im trying to use sequential hot deck imputation, and thus I am trying to figure out how to replace missing values with the value before it. Other things I have to keep in mind is if there are two missing values side by side, how do I replace both those values with the

Dear R useRs, I have a vector with positive and negative numbers: A=c(0,1,2,3,0,4,5) Now if i-th element in vector A is > 0, then i-th element in vector B is a+1 else i-th element in vector b=a (or 0) vector A: 0 1 2 3 0 4 5 vector B: 0 2 3 4 0 5 6 What's the right way to do this. I still have some problems with for and if statements... Cheers, Andrej

Dear useRs, I have two different length vectors: one column (1...m) and one row vector (1...n): 20 40 20 60 5 4 2 Now I have to calculate ratios between column vector elements and each row vector elements: 4 5 10 8 10 20 4 5 20 15 12 30 Thank's in advance for any suggestions, Andrej

Hai Andrej, Oeps, Sorry, my mistake 4.6.x needs at least 1.1.29. But you can upgrade to 4.6.x ;-) Check again and if that problem then still exists, then i think you can better ask this one in the samba-technical list. Or if Rowland knows something more about this. One tip, wait untill tomorrow or the weekend, there wil be a new release due to the regression bug. There planning is to be

hello, I try to use samba as PDC on NetBSD, but I 've had problem with that combination.. samba work perfectly..but if someone want to write into homedir, they couldn't, and w2k workstation appear message , that disk is full.. disk isn't full, and permission are set correct I don't know, where should be a mistake, I check configuration problably 100x, but I haven't found any

Hello Rowland, of course it will be started by samba, I saw this output if I run "samba -i". But I can trigger this output also by starting samba_kcc manually. Andrej -----Ursprüngliche Nachricht----- Von: Rowland Penny [mailto:rpenny at samba.org] Gesendet: Donnerstag, 9. November 2017 14:04 An: samba at lists.samba.org Cc: Andrej Gessel <Andrej.Gessel at janztec.com>

Dear R useRs, I have big (23000 rows), vertical bar delimited file: e.g. A00001|Text a,Text b, Text c|345 A00002|Text bla|456 ... .. . Try using A <- read.table('filename.txt', header=FALSE,sep='\|') process stop at line 11975 with warning message: number of items read is not a multiple of the number of columns I have no problems with processing similar file, which is