Re: analysis question - or dot plots vs histograms

From: Hans Jürgen Hoffmann (GRP02S.hjh@aaa.dk)
Date: Wed May 24 2000 - 02:47:32 EST


Dear Becky
I take it that your question is not about the identification of eosinophils in whole
blood.  It is whether the dot plot method is preferable to the histogram method for
analysing expression of surface molecules expressed at low density.

I feel that your dot plot method is acceptable, as it approximates an Overton Subtraction
result - see documentation for FCS Express (www.denovosoftware.com) or the literature
for Roy Overtons publication of the method.  The histogram method is preferred by
traditionalists that are used to distinguishing CD4s from CD8s, and is not at all
suitable for analysis of receptors expressed at low density.  I would be curious to
hear what the real pros have to say to this, though.



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