ADNI Data User Group

This group is devoted to questions from users of the ADNI data. Please check the documentation available from Laboratory of NeuroImaging at USC, in particular http://adni.loni.usc.edu/data-samples/data-faq/, before posting your question. To subscribe to list, send an email to adni-data+subscribe@googlegroups.com.

ADNIMERGE data package for R

For users of R, we have developed a data package "ADNIMERGE" which contains coded data, documentation, and analysis vignettes. The package documentation can be found at http://adni.bitbucket.org/ and more information about ADNI is available from http://adni.loni.usc.edu/. The R package depends on Frank Harrrel's Hmisc package which can be installed from the R package repository (CRAN) by:

R prompt> install.packages("Hmisc")

To downloading the compressed ADNIMERGE_0.0.1.tar.gz file, direct your browser to

http://adni.loni.usc.edu/ > Login > Download > Study Info > Merged ADNI 1/GO/2 Package for R

The package can be installed to your R system by entering the following at an R prompt:

R prompt> install.packages("ADNIMERGE_0.0.1.tar.gz", repos = NULL, type = "source")

If you have trouble installing, more information can be found here.

To view, for example, documentation for the adas:

R prompt> ?adas

or

R prompt> ??cognitive

ADNI Data Packages for SAS, Stata, SPSS

Similar packages are available for SAS, Stata, and SPSS. To install, change the working directory to /path/to/ADNIMERGE_SAS, /path/to/ADNIMERGE_STATA, or /path/to/ADNIMERGE_SPSS as appropriate and source the code files.

Collaborating on R package development

Ramiro Magno