[BioC] Heatmap ( ) : Thank you Sean & Liu..

[Saurin Jani]

Thank you,

Sean and Liu.

Saurin


--- Sean Davis <sdavis2 at mail.nih.gov> wrote:

> Saurin,
> 
> What a heatmap is going to show of course depends on
> what expression 
> you give it.  So, a heatmap will not have any
> general form.  If you 
> have two groups of samples and two groups of genes,
> there will be four 
> blocks, etc., but having a "medium" group does not
> mean that the 
> heatmap is wrong.  What structure a heatmap has
> depends on what is 
> being plotted in the heatmap, not the heatmap
> settings (for the most 
> part--scaling in particular can drastically change
> the way a heatmap 
> looks, but the structure remains).
> 
> Sean
> 
> On Oct 19, 2004, at 10:15 AM, Saurin Jani wrote:
> 
> > Hi,
> >
> > I am getting very clear blocks of high and low and
> > medium expression of genes across the heatmap .
> >
> > I am using :
> >
> > heatmap(esetMatrix) and using all default values
> in
> > them.
> >
> > ------|
> > high  |  low
> > ------|-------|
> >  low  | high  |
> >       | (med) |
> >       |-------|
> >
> >
> > Is something wrong I am doing here or heatmaps are
> > supposed to be
> >
> > high low high or low high low
> >
> >
> > Could anyone explain to me..if possible...please!
> >
> > thank you,
> > Saurin
> >
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> 
>