Sorry to keep posting this, I am very new user of Bioconductor and I cant
seem to find any clarification on this anywhere.. This is somewhat related
to this question listed below, I just want some more clarification on using
the CNA function. This is probably very elementary, I apologize in advance

https://stat.ethz.ch/pipermail/bioconductor/2007-September/019138.html

>From an agilent data set the SystematicName column is composed of elements
of the form chr3:175483690-175485000. So for example for this element the
chromosome # is 3, so the vector of these #s for all elements is passed as
chrom in the CNA function. But what is the position numeric passed to
maploc in the CNA function? From the documentation the maploc argument is
"the locations of marker on the genome. Vector of length same as the number
of rows of genomdat. This has to be numeric."  So it has to be numeric from
the DNAcopy documentation. Is it the first value 175483690, the second
value 175485000 , or the average of the two 175484345, or something else
that I am missing completely? I

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