[R] heatmap question

[Mark Aquino]

Brilliant, that's exactly what I needed.  Thank you.  The axis labels are duplicated on top and the bottom now though, but I'm sure there's a way to suppress them from appearing.
On Jun 3, 2011, at 11:24 AM, David Winsemius wrote:

> 
> On Jun 3, 2011, at 9:26 AM, Mark Aquino wrote:
> 
>> Yes I understand what ?<text> means, I meant is it possible to use this function (as an argument) with heatmap.2,  but I learned I can use add.expr=mtext(....) to do that.  However I'm not simply trying to add more text to the graph but rather move the display of the x-axis labels from the bottom of the chart to the top so the output would be more like:
>> 
>> 1 2 3 4 5 6
>> --------------|1
>> 		   |2
>> 		   |3
>> 		   |4
>> 		   |5
> 
> The help page makes me think that repositioning the x-labels (which would also require repositioning or suppressing the "upper" dendrogram)  would require hacking the function, since it sets up specific regions on the page with layout(). You should provide a minimal example for other readers, but I'm not going to proceed further since it is now clear that you are not just trying to move the 'xlab' which was how I interpreted your initial problem description.
> 
> [ Assuming you have suppressed the column dendrogram, it may be a simple as changing the 1 to 3 in this line of code:
> 
> axis(1, 1:nc, labels = labCol, las = 2, line = -0.5, tick = 0,
>        cex.axis = cexCol)
> ....]
> 
> -- 
> David
> 
> 
>> 
>> On Jun 2, 2011, at 10:45 PM, David Winsemius wrote:
>> 
>>> 
>>> On Jun 2, 2011, at 10:42 PM, Mark Aquino wrote:
>>> 
>>>> Hey David,
>>>> 
>>>> Thanks for answering, but can I use mtext with the heatmap.2 function? According to the description that's not one of the arguments it takes.
>>> 
>>> It's not an argument. When someone types ?<something> it means to look at the help page for the <something> function which will appear if you just type ?<something> at the console.
>>> 
>>> 
>>>> Sorry if these questions are trivial, I'm very new with R, basically being forced to learn it for work.
>>>> 
>>>> 
>>>> Best,
>>>> Mark Aquino
>>>> On Jun 2, 2011, at 10:37 PM, David Winsemius wrote:
>>>> 
>>>>> 
>>>>> On Jun 2, 2011, at 4:08 PM, Mark Aquino wrote:
>>>>> 
>>>>>> Hi,
>>>>>> 
>>>>>> I have what would seem to be a very simple problem but have been unable to find any way to go about solving it:
>>>>>> I am using heatmap.2 to create a heatmap and by default the x axis label is at the bottom of the heatmap, I simply want to move the label to the top of the heatmap.
>>>>> 
>>>>> ?mtext
>>>>> 
>>>>> 
>>>>>> Any help with this would be greatly appreciated.
>>>>>> 
>>>>> 
>>>>> -- 
>>>>> 
>>>>> David Winsemius, MD
>>>>> West Hartford, CT
>>>>> 
>>>> 
>>> 
>>> David Winsemius, MD
>>> West Hartford, CT
>>> 
>> 
> 
> David Winsemius, MD
> West Hartford, CT
>