ChipMapper contains Matlab scripts for mapping probe set IDs between Affymetrix chips U74Av2 and U95Av2, U133Plus and U95Av2.

Follow the steps below to use ChipMapper:

1. Download dataframe.jar.

2. Add the full path to dataframe.jar to your Matlab Java class path by typing the following command in Matlab:

For example, if you downloaded dataframe.jar to C:\temp, then add C:\temp\dataframe.jar to your classpath.txt file and save it.

3. Download scripts map74av2To95av2.m, map95av2To74av2.m, map133plusTo95av2.m and map95av2To133plus.m, and run in Matlab. Usage example can be found in the comments section of each function.