foreign (version 0.5-13)

read.ssd: obtain a data frame from a SAS permanent dataset, via read.xport

Description

generates a SAS program to convert the ssd contents to SAS transport format and then uses read.xport to obtain a dataframe

Usage

read.ssd(libname, sectionnames, 
   tmpXport=tempfile(), tmpProgLoc=tempfile(), sascmd="sas")

Arguments

libname

string defining the SAS library (usually a directory reference)

sectionnames

vector of strings giving member names. These are files in the `libname' directory. They will usually have a `.ssd0x' or `.sas7bdat' extension, which should be omitted.

tmpXport

string: location where temporary xport format archive should reside -- defaults to a randomly named file in /tmp, which will be removed

tmpProgLoc

string: location where temporary conversion program should reside -- defaults to a randomly named file in /tmp, which will be removed

sascmd

string: defaults to "sas"

Value

• a data frame if all goes well, or NULL with warnings and some enduring side effects (log file for auditing)

Details

creates a SAS program and runs it

See Also

read.xport

Examples

## if there were some files on the web we could get a real
## runnable example
R> list.files("trialdata")
 [1] "baseline.sas7bdat" "form11.sas7bdat"   "form12.sas7bdat"  
 [4] "form13.sas7bdat"   "form22.sas7bdat"   "form23.sas7bdat"  
 [7] "form3.sas7bdat"    "form4.sas7bdat"    "form48.sas7bdat"  
[10] "form50.sas7bdat"   "form51.sas7bdat"   "form71.sas7bdat"  
[13] "form72.sas7bdat"   "form8.sas7bdat"    "form9.sas7bdat"   
[16] "form90.sas7bdat"   "form91.sas7bdat"  
R> baseline<-read.ssd("trialdata","baseline")
R> form90<-read.ssd("trialdata","form90")