ORNL Technical Report "Statistical Methods and Software for the

Analysis of Occupational Exposure Data With Non-Detectable Values",

ORNL/TM-2005/52 is available here in PDF format

Abridged Version (Abstract,Introduction,Applications and Appendix) is available here in HTML format

R is a language and environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms and similar systems (including FreeBSD and Linux), Windows, and MacOS. R is available as Free Software under the terms of the Free Software Foundation's GNU General Public License in source code form and as binaries.

Visit the R Homepage and read What is R?( see Menu on left) and the FAQs under Documentation. For on line documentation go to the R Homepage and Select [Manuals] on left hand menu and then see Item 1 An Introduction to R and click on [browse HTML].

** The "informal" R functions in Step 2 below
have been replaced with the R packages "Statistical Analysis of
Non-detect Data"(sand). The sand package is available at the statoed
website CLICK HERE Please visit this new website
for instructions on how to obtain and install R and the sand package
and to obtain the data sets in Stps 3-5 below.****.
**

- If you have R installed and have an R-icon on your desktop go to the next step.

If you do not have R installed click here for instructions. - To download the R functions from oedmain.R ,
oedutil.R and the example data sets:
CLICK HERE. See online help files and documentation
for the sand package.
- To Run R and Read in Functions and Data Sets in ORNL/TM-2005/52 CLICK HERE. These data sets are now available in the sand package.
- To read and analyze data from Example 1 Smelter Elevated Surface Data CLICK HERE. See sand package help file for SESdata.
- For an example of how to read and analyze multiple data
sets from an Excel Spread Sheet CLICK HERE
See sand package help file for R function readss() in sand package.

Changes or revisions to material at this web site are indicated Here. Please see Notes 1 and 2 if you down loaded the R functions BEFORE 29 June 2005 from the FINAL DRAFT version of this web site at www.csm.ornl.gov/~frome/aoed/

Last Modified 2 May 2007 by FromeEL@ornl.gov (touches: 234859 )

URL http://www.csm.ornl.gov/esh/aoed/

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