character string defining the SAS library (usually a
directory reference)
sectionnames
character vector giving member names. These are
files in the libname directory. They will usually have a
.ssd0x or .sas7bdat extension, which should be
omitted. Use of ASCII names of at most 8 characters is strongly
recommended.
tmpXport
character string: location where temporary xport
format archive should reside – defaults to a randomly named file
in the session temporary directory, which will be removed.
tmpProgLoc
character string: location where temporary
conversion SAS program should reside – defaults to a randomly named
file in session temporary directory, which will be removed on
successful operation.
sascmd
character string giving full path to SAS executable.
Details
Creates a SAS program and runs it.
Error handling is primitive.
Value
A data frame if all goes well, or NULL with warnings and some
enduring side effects (log file for auditing)
Note
This requires SAS to be available. If you have a SAS dataset
without access to SAS you will need another product to convert it to a
format such as .csv, for example ‘Stat/Transfer’ or
‘DBMS/Copy’ or the ‘SAS System Viewer’ (Windows only).
SAS requires section names to be no more than 8 characters. This is
worked by the use of symbolic links: these are barely supported on Windows.
## if there were some files on the web we could get a real
## runnable example
## Not run:
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")
## Or for a Windows example
sashome <- "/Program Files/SAS/SAS 9.1"
read.ssd(file.path(sashome, "core", "sashelp"), "retail",
sascmd = file.path(sashome, "sas.exe"))
## End(Not run)