MAPAmat {Category} | R Documentation |
For many organisms cytochrome bands, or MAP positions, can be determined on chromosomes. This function computes an adjacency matrix mapping gene chip identifiers to MAP locations.
MAPAmat(data, minCount = 5)
data |
The character string naming the data package to use. |
minCount |
The minimum number of genes that must be mapped to retain a position. |
All MAP regions with fewer than minCount
genes associated with it
are dropped. Most genes are mapped to a single MAP region, in the rare
cases where there are multiple mappings only the first one is used.
A matrix of zeros and ones (possibly a sparse representation) where rows
correspond to MAP regions and columns to probe IDs. A one indicates that
the corresponding gene is in the mapped region.
Mapping is based on Entrez gene IDs.
R. Gentleman
mam <- MAPAmat("hgu95av2", 10)