To install this package, start R and enter:


In most cases, you don't need to download the package archive at all.


Microarray database and utility functions for microarray data analysis.

Bioconductor version: 2.13

maDB allows to create a simple microarray database to store microarray experiments and annotation data into it. Affymetrix GeneChip expression values as well as values from two color microarrays can be stored into the database. Whole experiments or subsets from a experiment (or also values for a subset of genes in a subset of microarrays) can be fetched back to R. Additionally maDB provides different utility functions for the microarray data analysis like functions to draw MA plots or volcano plots with the data points color coded according to the local point density or functions that allow a replicate handling of miroarrays.

Author: Johannes Rainer <johannes.rainer at>

Maintainer: Johannes Rainer <johannes.rainer at>

Citation (from within R, enter citation("maDB")):


To install this package, start R and enter:



To view documentation for the version of this package installed in your system, start R and enter:



PDF maDB-015.pdf
PDF maDB-016.pdf
PDF maDB.pdf
PDF   Reference Manual


biocViews Microarray, OneChannel, Software, TwoChannel, Visualization
Version 1.34.0
In Bioconductor since BioC 1.6 (R-2.1) or earlier
License LGPL (>= 2)
Depends R (>= 2.6.0), Biobase(>= 2.5.5), affy(>= 1.23.4), pgUtils(>= 1.23.2), limma(>= 1.8.0), methods
Suggests annaffy(>= 1.6.2), biomaRt(>= 1.8.2), geneplotter
System Requirements
Depends On Me
Imports Me
Suggests Me

Package Archives

Follow Installation instructions to use this package in your R session.

Package Source maDB_1.34.0.tar.gz
Windows Binary
Mac OS X 10.6 (Snow Leopard) maDB_1.34.0.tgz
Browse/checkout source (username/password: readonly)
Package Downloads Report Download Stats

Mailing Lists »

Post questions about Bioconductor packages to our mailing lists. Read the posting guide before posting!

Fred Hutchinson Cancer Research Center