search for: datastep

Can R support data manipulation programming that is available in the SAS datastep?  Specifically, can R support the following: -          Read multiple dataset one record at a time and compare values from each; then base on if-then logic write to multiple output files -          Load a lookup table and then process a different file; based on if-then logic, access and lookup valu...

Hello Everyone,   Below is some SAS code that uses a "line hold specifier" to read multiple observations from each of several input lines of data. There are 3 patients per line in the in-stream data.   Is there a way in R to read this kind of data? I've looked in my books and online but haven't found anything   Thanks,   Paul     DATA EXAMP.TRIAL; INPUT TRT $ CENTER PAT SEX $ AGE

...and Y is the predicted probabilities; proc npar1way data = mydata D; class x; var y; run; When i try this in R ks.test(x, fitted(y),alternative = c("two.sided"),exact = NULL) I get very different result compared to SAS. I am new to R. Any help is appreciated. I think i am missing a datastep maybe ? Thank you. -- View this message in context: http://r.789695.n4.nabble.com/Proc-Nnpar1way-with-D-option-equivalent-in-R-tp4649348.html Sent from the R help mailing list archive at Nabble.com.

...e with variable1*variable2 subgroups: A row from dataset1 where variable1=4 and variable2="Sam" can only match to a row from dataset2 where variable1=4 and variable2="Sam". Also, any match-ups where it is not the case that var3<=var4 are also excluded. Here's how the SAS datastep will do it: merge dataset1 dataset2 dataset3 ; by variable1 variable2 ; if ^( var3<=var4 ) then delete ; [Actually, the SAS datastep can only do a many-to-one join, but you can do a PROC SQL paragraph to do an SQL SELECT statement, then export the results to a SAS datastep afterwards.] The po...

...before, you won't care, but this programming language falls in the same family as the SPSS and SAS programming languages. All three programming languages have a fair amount in common, but are quite different from the S programming language. The vilno data processing function can replace the SAS datastep. (It can also replace PROC TRANSPOSE and much of PROC MEANS, except standard deviation calculations still need to be included in the select statement). ******************************************** I hope that helps. http://code.google.com/p/vilno

...tarted doing the statistical tests. The founder: Ben Pfaff, either a grad student or professor at Stanford CS dept. Also at : directory.fsf.org/math/stats (GNU GPL) 3. Vilno This uses a programming language similar to SPSS and SAS, but quite unlike S. Essentially, it's a substitute for the SAS datastep, and also transposes data and calculates averages and such. (No t-tests or regressions in this version). I created this, during the years 2001-2006 mainly. It's version 0.85, and has a fairly low bug rate, in my opinion. The tarball includes about 100 or so test cases used for debugging - for l...

...source license. Check 'em out! ******************************************************* Vilno: data transformation software, that reads in input datasets (rows and columns), crunches through the data, and writes out output datasets. It's an open source application that can replace the SAS datastep ( and also replaces proc transpose and proc means ). Find it at: http://code.google.com/p/vilno ( look in the download section for a tarball, it's a Linux application, can be opened up (and maybe installed) on an Apple as well ). ************************************************ DAP and PSPP:...