[BioC] Heatmap ( )

[Sean Davis]

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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