[R] Aligning gel data
john seers (IFR)
john.seers at bbsrc.ac.uk
Fri Oct 26 16:45:42 CEST 2007
I have some data from a number of gels showing the distance of bands in
each gel and lane. My problem is to align these values by some method.
It has been suggested to me (by a Matlab expert) that I could use
Spectral methods such as COW (correlation-optimised warping) or PAGA
(peak alignment using GA). I have searched but cannot find if there are
equivalent packages that do this in R. Any suggestions from anybody on
where to look? The idea is, I think, to create a matrix of all the
possible values, mark them as present or not, and then perform an
i.e a matrix something like:
lane1 lane2 lane3 ...
.001 1 0 0 etc
.002 0 0 0 etc
Is there a more direct method than using spectral methods? Has anybody
done something equivalent?
Thank you in advance for any help.
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