The MethComp package for R:

Statistical analysis of Method Comparison studies

• The MethComp package is aimed at providing practical analysis and graphics tools for analysis of studies where two or more methods of clinical measurements are compared.
• The MethComp package (cuurent version 1.22) is available from the Comprehensive R Archive Network, CRAN, here.
  You can the install it from R it by clicking Packages -> Install package(s), choose a mirror to download from and then select the MethComp package.
  You must also install the packages R2WinBUGS, coda, BRugs or rjags and lattice.
  Some of the functions in MethCpmp package, notably the MCmcmc function depends on the presence of either JAGS, OpenBUGS or WinBUGS on your computer.
• Later and previous versions are here. The latest is (1.25) here as zip file for Windows and tar file.
  You can install it on Windows by downloading the .zip file to your computer, and then from within R click Packages -> Install package(s) from local zip files.... You will then be asked to point to the .zip file you just downloaded.
• Earlier, current and progress versions of the MethComp package are available here.
• Here is "Introduction to MethComp", with a brief overview and a couple of worked examples.
  Beware that the last pages of this is merely the manual pages for the MethComp package, so you may not want to print it all.
• A number of courses using the MethComp package has been given by Bendix Carstensen.
• Martin Bland has a very interesting website with links to litterature, FAQs etc..