hgu95eENTREZID {hgu95e} | R Documentation |
hgu95eENTREZID is an R environment that provides mappings between manufacturer identifiers and Entrez Gene identifiers.
Each manufacturer identifier is mapped to a vector of Entrez Gene identifiers. An
NA
is assigned to those manufacturer identifiers that can not be mapped
to an Entrez Gene identifier at this time.
If a given manufacturer identifier can be mapped to different Entrez Gene identifiers from various sources, we attempt to select the common identifiers. If a concensus cannot be determined, we select the smallest identifier.
Mappings were based on data provided by:
Entrez Gene:ftp://ftp.ncbi.nlm.nih.gov/gene/DATA/. Built: Source data downloaded from Entrez Gene on Fri Aug 24 22:30:30 2007
Package built: Fri Aug 24 22:52:31 2007
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=gene
# Convert the environment to a list xx <- as.list(hgu95eENTREZID) # Remove probe identifiers that do not map to any ENTREZID xx <- xx[!is.na(xx)] if(length(xx) > 0){ # The ENTREZIDs for the first two elements of XX xx[1:2] # Get the first one xx[[1]] }