**[[http://ihome.cuhk.edu.hk/~b400559/arraysoft_rpackages.html R package in Microarray data]]**

**A exampe for microarray probe mapping using Bioconductor**

First, install the corresponding affimatrix chip name:

source("http://bioconductor.org/biocLite.R")
biocLite("hu35ksuba")

second, upload the package from R

third, read the your desired transfer:

x <- hu35ksubaUNIGENE
# Get the probe identifiers that are mapped to an UNIGENE ID
mapped_probes <- mappedkeys(x)
# Convert to a list
xx <- as.list(x[mapped_probes])
if(length(xx) > 0) {
# Get the UNIGENE for the first five probes
xx[1:5]
# Get the first one
xx[[1]]
}

last, write into file:

dput(xx,'aaaaa')


**dChip**
Download dChip

cdf file: [[https://www.affymetrix.com/support/technical/libraryfilesmain.affx]]
[[http://www.affymetrix.com/support/support_result.affx]]

gene information: [[http://www.biostat.harvard.edu/complab/dchip/gene_info_file.htm]]