search for: wangyong1

Dear R users the factanal pacakge is always MLE, which package can do varimax rotation with the results from princomp ? thank you yong

Dear R-list My question is exactly as the subject, I did search the archieve but failed to find relevant message, in more details: The simplest example, 4 factors and 4 value like below: 10 20 30 40 A B C D if I plot the value, the x-axis will be scaled as 1,2,3,4 with each represent a level. How can I change the x-axis scale to A,B,C,D ? Regards young

Dear list I am trying installing a package under unix, the command as below works in some case but not some other cases, the primary syndrome is R will stop there with a message: (say I am trying to install the package SASxport) ########################### Warning in install.packages("SASxport", dependencies = TRUE) : argument 'lib' is missing: using

Dear List I am running a loop downloading ?web pages and save the html to a temporary file (use download.file() ) ?then read (using readLines) ?it in for processing; finally write useful info from each processed page to a unique file the problem is once the loop runs up to somewhere near ?5000, it will throw out an err like below and won't go further.

Dear list I used to use python or awk do preliminary process and then feed into R. In some circumstances, the data transmission becomes quite a pain. I am wondering if there is a convenient way to read in R text file (not data, text file in common sense) and specify field separator and records separator, so the whole work can be reduced to one-stop shopping. or simply, is there one simple way to

Dear all: I have a tab delimited file as following AGE WEIGHT PROTEIN ........ 6 20 3 ........ 8 39 4 ........ I tried to read it as following: data <- read.table(file,sep="\t",header=T); but there is only column for the data after reading in,: dim(data); [1] 200 1 the column name is "AGE...WEIGHT...........PROTEIN...." Any quick suggestion will be appreciated.

Dear list; How can I speed up the run of following code (illustrative) #======================================================================== con<-vector("numeric") for (i in 1:limit) { if(matched data for the ith item found) { if(i==1) {con<-RowOfMatchedData } else {con<-rbind(con,matchedData)} } }

Dear List I am trying to fit a simutaneous equation logit model. i.e., the response variables of the structured equations are binomial, I am not sure if systemfit can do this job. A google search doesn't yield too much helpful information. Your knowledge on any other packages or codes are appreciated. Thanks will

I am using the mlogit packages and get a data problem, for which I can't find any clue from R archive. code below shows my related code all the way to the error #--------------------------------------------------------------------------- mydata <- data.frame(dependent,x,y,z) mydata$dependent<-as.factor(mydata$dependent) mldata<-mlogit.data(mydata, varying=NULL,

Dear all: Described below is a large data set problem (data size > 2G after unzipping, table delimited). I know R is not the appropriate tool for such task, anyway I did it on a server and get some straightforward problems. 1. The first is count.fields can count all the rows, however, when I tried to remove rows beyond 3/5 of the data,R says subscripts out of bounds, is there any option

hi, list R is undoudtedly my favorite statistic tool, however, the data inputnpart has long been a pain. most data I have to deal with are irregular and contains special character. Recently I get a tab delimited data, read.table(filename,sep="\t") constantly return erors for certain rows does not has xyz elements while all other programs such as perl,python, awk all report equal row

Dear List I asked this question before, got some tips but can't get it solved. it is clear now that this problem only occurs when run on windows (I tested it on windows XP) nothing wrong at all when run on unix. unfortunately, sometimes I have to run it on windows, I appreciate any suggestion on how to circumvent this problem when run on windows. below is the problem description I submitted

Dear list I am trying to install the systemfit package under unix, install.packages(systemfit) the installation failed. I am attaching the error and version information below, (if dependencies=TRUE, much more error) any help appreciated best, yong ===================================================================== > install.packages("systemfit") Warning in