Hi Jim,
Thanks for the helping me to start with these functions.I will look into it
and try writing code by myself first.
Thanks,
Viritha

On Mon, Jan 10, 2011 at 12:51 PM, James W. MacDonald
<jmacdon@med.umich.edu>wrote:

> Hi Viritha,
>
>
> On 1/10/2011 12:20 PM, viritha kaza wrote:
>
>> Hi Group,
>> I am new to R statistics.
>>
>
> Welcome to the world of R!
>
>
> I have normalised microarray data which I want to make median same for each
>> sample before performing statistical analysis for ttest or SAM test.Can I
>> do
>> this in R ? If possible could you please help me in writing the code for
>> 15
>> control and 23 treatment samples and have normalised data as a text file.
>>
>
> I think we need to modify your expectations. You will get much better help
> if you show some willingness to at least make an attempt to do something,
> show your code, and ask where you went wrong. Simply stating your goal and
> asking for somebody to give you the code is sub-optimal for two reasons:
>
> 1) Very few people will take the time to do something you haven't
> apparently taken the time to attempt yourself.
>
> 2) Being given some obscure code that does what you want will not help you
> climb the learning curve. You will be much better served by trying to get
> things done, and then if you fail, asking for help.
>
> So here is a hint:
>
> ?sweep
> ?median
>
> Also, read this:
>
> http://cran.r-project.org/doc/manuals/R-intro.html
>
> Best,
>
> Jim
>
>
>  Waiting for your response,
>> Thanks,
>> Viritha
>>
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>>
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>
> --
> James W. MacDonald, M.S.
> Biostatistician
> Douglas Lab
> University of Michigan
> Department of Human Genetics
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