search for: tyagianupam

Hi, is there a way to analyze subpopulations (e.g. women over 50, those who answered "yes" to a particular question) in a survey using Survey package? Other packages (e.g. Stata, SUDAAN) do this with a subpopulation option to identify the subpopulation for which the analysis shoud be done. I did not see this option in the Survey package. Is there another way to do this?

My earlier posting should have said "dotchart", not "barchart". 1)  How does one show confidence-intervals in a "dotchart" and use rownames for labels on the y-axes?  I have looked at "plotCI" in "gregmisc" package . But it does not seem to produce something like a dotchart.  The statistic, error, upper-bound, and lower-bound are in a

Hi, where can I find the most up-to-date Debian packages for R and sources in USA. I will be thankful for the location that I can include in my sources.list. Are their any special recommendations or instructions for building and maintaining R on Debian? A web-link will be helpful. ---anupam. [[alternative HTML version deleted]]

How can I use row.names() as y-labels in Dotplot? How to set horizontal orientation for y-lables in lattice()? Dotplot(stcod1 ~ Cbind(statgh2,statgh2-1.96*segh2,statgh2+1.96*segh2)[og], subset=statgh2[og]>0.1, data=h2inqerrg02st, xlab="G", ylab=row.names(h2inqerrg02st)[og], main="") I have tried doing it with mtext() as well, but there is not enough space besides

Hi R users, 1) How does one show confidence-intervals in a barchart and use rownames for labels on the y-axes? I have looked at "plotCI" in "gregmisc" package . But it does not seem to produce something like a barchart. The statistic, error, upper-bound, and lower-bound are in a dataframe. 2) How to show CI in a barchart either using the statistic and, either (a)

Hi R users, I am trying to use the aggregate function with a survey design object and survey functions, but get the following error. I think I am incorrectly using the syntax somehow, and it may not be possible to access variables directly by name in a survey-design object. Am I right? How do I fix this problem? I have used aggregate with "mean" and "weighted.mean", and

Hi R users, I have been trying to install and use RMySQL on Windows98 for MySQL3.23.55-max using the pulldown menu. I am getting the following errors. I read the doc and some archived mails about a similar problem on unix like systems. Still can't get it to work. Some info below that may indicated where the problem is: * The directory RMySQL\libs is empty---I was not expecting this. *

Hello All, I am new to R. I am trying to process this huge data set of matrix containing four columns, say x1, x2, x3, x4 and n number of rows. I want to aggregate the matrix by x1 and perform statistic based on columns x2, x3, x4. I tried aggregate function but it gave me memory allocation error (which I am not surprised), so I ended up performing a for loop based on x1 and

<PRE>I am looking for suggestions for a good Database Management System to use with R. The main use of this will be to format, query and make subsets of large datafiles for use in R. I recall reading a comparative write-up either in the newsletter, in the mails or someone's webpage last summer, but cant seem to find it now. I will be thankful if someone can help in locating such

How to merge multiple dataframes with a common column? Merge takes only two dataframes as arguments. Something like: df <- merge(df1,df2,df3,...,by="ID") Anupam. [[alternate HTML version deleted]]

Dear R-users, I am faced with the problem of analyzing a huge dataset (+ 2 million records, +150 variables) which does not fit into memory. I would like to know if there are pre-packaged tools (in the spirit of Insigthful I-Miner, for instance) aimed at subsampling or splitting the dataset into data-frameable subdatasets, applying functions record-wise, etc. Thank you very much for your

I am trying to make plots that take into account survey weights. This a survey of the US population. To start with I want to explore the data using pairs, plot, coplots and lattice. Are there specialized methods that handle survey weights for plotting? Any pointers? Anupam. [[alternative HTML version deleted]]

The following paper may be of interest to some. The author is generous about sharing a recently revised version. <A HREF="http://papers.ssrn.com/sol3/papers.cfm?abstract_id=259648">http://papers.ssrn.com/sol3/papers.cfm?abstract_id=259648</A> [[alternative HTML version deleted]]

I am trying to modify aggregate.data.frame to create an aggregate method for survey design objects. I am running into problems because survey design objects are lists, with the variables and other design information stored in separate dataframes, or objects of other classes, in this list. *Apply and split functions do not seem to work on the design objects. How do I approach this, without

What is a good way to create a matrix of index variables based on all possible combinations of a list of factors in a data-frame, say list(age, sex)? "age" and "sex" are numeric and factor variables in a dataframe, with 99 and 2 values, respectively. I would like to use these for subsetting the data-frame, apply functions to subset and collecting the results.

How do I update to a new version of R on Linux without going through a new installation? How do I update packages? -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To:

Hi R users, I am new to using DBMS with R for large datasets. Thanks to all who responded with useful suggestion to my earlier postings about using large datasets and DBMS with R. I am writing to get some help about how to design good tables in DBMS to take full advantage of the wonderful built-in facilities in R, like labels. I am using RMySQL client. Because R makes good use of variable

Dear R-Representative: I am very new to R and I have to admit that I am not the cleverest of users. So, please bear with me. I have installed R on my Mac OS 8.6. I am interested in eventually using the packages -- many useful ones have been downloaded with the basic R software. I have looked through some of the manuals, however, I have not yet found how to access the commands in these packages.

Hello, I've done most all the various steps outlined in a recent posting to the mailing list archives (and in the help files) to load and run R-WinEdt. I can get it to run fine but I am not successful in getting it to interface with RGui (1.6.2, not minimized). I try to use the R-line, R-source, R-paste buttons with no success. [All the necessary *.edt files appear to be in the proper

Hi, I am trying to apply *sapply* to functions within functions within functions to do a Monte Carlo experiment: take Y sample of size X based on cell probabilities (using Brian Ripley's suggestion for drawing from contingency tables), for each calculate a vector of statistics, calculate bootstrap std errs with R replications and their means and SD. Store results in a matrix for further