similar to: Reading sas7bdat files into R

Hello R users, Good day!! I was wondering if there is a way in R to read in a particular column from a tab-delimited file, edit it and write it back into the file with all other columns intact. When I say edit I mean just replacing all the values in that column. I know to read a particular column from a file using colClasses option in read.delim() function. Is there any such option to write out

Hi, I have a need to process (in real-time) a large number of .sas7bdat files from within R. The problem is I don't want to convert these files to .xpt (transport) every time. So just checking if anyone has a (viable) way to read .sas7bdat files directly into R? Thank You. //---------------------------------- // Alex Bryant // Software Developer // Integrated Clinical systems //

Hello All, I have a toy dataframe like this. It has 8 columns separated by tab. Name SampleID Al1 Al2 X Y R Th rs191191 A1 A B 0.999 0.09 0.78 0.090 abc928291 A1 B J 0.3838 0.3839 0.028 0.888 abcnab A1 H K 0.3939 0.939 0.3939 0.77 rx82922 B1 J K 0.3838 0.393

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Dear All, Am trying to import SAS files to R. For that i used library "Hmisc" and try<-sas.get("C:\\ex.sas7bdat") . But it shows error that Error in sas.get("C:\\ex.sas7bdat") : SAS member name is required In addition: Warning message: In sas.get("C:\\ex.sas7bdat") : C:\ex.sas7bdat/formats.sc? or formats.sas7bcat not found. Formatting ignored.

Hi, I have a tab seperated file with 206 rows and 30 columns. I read in the file into R using read.table() function. I checked the dim() of the data frame created in R, it had only 103 rows (exactly half), 30 columns. Then I tried reading in the file using read.delim() function and this time the dim() showed to be 206 rows, 30 columns as expected. Reading the read.table() R-help documentation, I

I want to place four plots on a page, and I would like to have all four plots share a common title. I have tried the following code, but the title is centered over the fourth graph and not centered across all four plots. Does anyone have any suggestions? R 2.1.1 windows xp oldpar<-par(mfcol =c(1,4),ask=TRUE) plot(p,varp) plot(p,SEp) plot(p,CVp) plot(p,ppval) title(paste("P and 95%CI

Hi, I have a file in .sas7bdat format. I tried to open this file using read.sas7bdat() function. This gave me an error - "Error in read.sas7bdat("bnp_genetic.sas7bdat") : unknown host X64_7PRO". Could someone tell me what this error means? Thank you, Praveen. [[alternative HTML version deleted]]

i am trying to convert sas file into csv. I used write.csv(a, file="cool.csv") but nothing come out. i don't know why. Thanks. library(Hmisc) a<- sasxport.get("C:\\Users\.....") write.csv(a, file="cool.csv") -- View this message in context: http://r.789695.n4.nabble.com/convert-the-sas-file-into-csv-in-R-tp3311769p3311769.html Sent from the R help mailing

I am using read.csv to read a CSV file (produced by saving an Excel file as a CSV file). The columns containing dates are being read as factors. Because of this, I can not compute follow-up time, i.e. Followup<-postDate-preDate. I would appreciate any suggestion that would help me read the dates as dates and thus allow me to calculate follow-up time. Thanks John John Sorkin M.D., Ph.D. Chief,

Hi All, I am trying to install ncdf package on a Linux 64-bit machine. I successfully installed netcdf using this command, ./configure --prefix=/home/challar/netcdf/ --disable-netcdf4 I then tried to install ncdf package in R R CMD INSTALL --configure-args="-with-netcdf_incdir=/home/challar/netcdf/include -with-netcdf_libdir=/home/challar/netcdf/lib" ncdf_1.6.3.tar.gz I get this

I am trying to model data in which subjects are followed through time to determine if they fall, or do not fall. Some of the subjects fall once, some fall several times. Follow-up time varies from subject to subject. I know how to model time to the first fall (e.g. Cox Proportional Hazards, Kaplan-Meir analyses, etc.) but I am not sure how I can model the data if I include the data for those

Can anyone suggest a good non-parametric test, and an R implementation of the test, that allows for two or more factors? Wilcoxon signed rank allows for only one. Thanks, John John Sorkin M.D., Ph.D. Chief, Biostatistics and Informatics Baltimore VA Medical Center GRECC and University of Maryland School of Medicine Claude Pepper OAIC University of Maryland School of Medicine Division of

I am having trouble selecting rows of a dataframe that will be included in a regression. I am trying to select those rows for which the variable Meno equals PRE. I have used the code below: difffitPre<-lm(data[,"diff"]~data[,"Age"]+data[,"Race"],data=data[data[,"Meno"]=="PRE",]) summary(difffitPre) The output from the summary indicates that

Dear R-ers, I was trying to read in a large sas7bdat file (size 148094976 bytes) using 'read.sas7bdat()', but it did not read in the data correctly. E.g., the first 5 rows will come out like this (I'm omitting other columns to keep it readable): PERSON_ID age 1 5.399114e-315 5.329436e-315 2 5.399114e-315 5.328302e-315 3 5.399114e-315 5.332026e-315 4

R 2.15.1 OS 10.7 Colleagues I have been an enthusiastic user of the sas7bdat package in R. However, several recent sas7bdat files sent to me from different sources cannot be read by the package. The error message is: Error in read.sas7bdat(FILENAME) : unknown host W32_7PRO please report bugs to sas7bdatRbugs at gmail.com I examined the file with a text editor and it contains

How would one generate data to be used in a simulation of a repeated measures ANOVA given a known (1) within-person correlation with known (2) mean and SD of data obtained at each of three times of observation? Thanks, John John Sorkin Chief Biostatistics and Informatics Univ. of Maryland School of Medicine Division of Gerontology and Geriatric Medicine JSorkin at grecc.umaryland.edu

Hello everyone, I want to import data from huge sas files with 100s of columns. The good thing is that I am only interested in a few selected columns. Is there any way to do that without loading the full dataset. I have tried two functions: (1) read.sas7bdat *[from library 'sas7bdat']*, and (2) read_sas *[from library 'haven']. *But couldn't find what I am looking for. Best

Hi, I was reading e-mail about one doubt that you were when you read files .sas7bdat in R. Now, I am with the same problem. But I don?t know how can i do that. I have download de Sas Viewer and i am using this sintax in r: > read.ssd("X:\\users\\Anresc07","que0411.sas7bdat") SAS failed. SAS program at C:\DOCUME~1\leandro\CONFIG~1\Temp\RtmpXR1Tid\file3d6c4ae1.sas The log

Hi I'm trying to use the sas7bdat package. It's working - I tried using it for a very small file and it worked very quickly and imported the data correctly. I then try it for a bigger file (315MB) and it takes quite a long time, more than 10 minutes and still not done. So I stopped it because from what I read, it shouldn't be taking this long. Should it take this long for a file this