Build probeAnno from match positions in an RGList
This function can be used to build a probeAnno object from the
reporter match positions given in the 'genes' slot of an RGList if
present, as is the case with some ChIP-chip microarray platforms,
e.g. with certain Agilent ones after reading in the data with
an object that holds the data and the probe match
positions, currently can only be of class
in which format are the reporter match positions stored in the object; see details; currently only "agilent" is implemented
further arguments that are passed on to the function
Which information is used for creating the probeAnno is specified by
expects that the object is of class
RGList. The 'genes' element of the object is taken. This element is expected to have at least a column 'ProbeName', which stores the unique reporter/probe identifiers, and a column 'SystematicName', which holds the probe match position in the format "chr<chromosome>:coordinate1-coordinate2", e.g."chr1:087354051-087354110".
An object of class
probeAnno holding the mapping between
reporters and genomic positions.