read.ssd

Obtain a Data Frame from a SAS Permanent Dataset, via read.xport

Generates a SAS program to convert the ssd contents to SAS transport format and then uses read.xport to obtain a data frame.

Keywords
file
Usage
read.ssd(libname, sectionnames, tmpXport=tempfile(), tmpProgLoc=tempfile(), sascmd="sas")
Arguments
libname
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.

See Also

read.xport

Aliases
  • read.ssd
Examples
library(foreign) ## 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)
Documentation reproduced from package foreign, version 0.8-67, License: GPL (>= 2)

Community examples

Looks like there are no examples yet.