addXYfromGAL: Computing the coordinates of the spots on a slide
Description
From the coordinates of the blocks of a microarray slide and the Row
and Column locations of the spots within the blocks,
addXYfromGAL computes the X and Y coordinates of the spots of a
slide.Usage
addXYfromGAL(x, gal.file, nBlocks, skip, ...)
Arguments
x
is an AnnotatedDataFrame representing the featureData
of an object.
gal.file
name of the file .gal that contains the coordinates
of the blocks.
nBlocks
number of blocks on the slide.
skip
number of header lines to skip when reading the
gal.file.
...
Arguments that get passed on to read.table.
Value
- The object
x of class AnnotatedDataFrame will be
returned with two added columns: X and Y corresponding to the absolute
position of the probes on the array.