cally written for this. See also ?sweep
>>>
>>> Bert Gunter
>>> Genentech Nonclinical Biostatistics
>>>
>>>
>>>
>>> -----Original Message-
>>> From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
>>&
om: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org]
On
Behalf Of Joris Meys
Sent: Tuesday, May 25, 2010 9:54 AM
To: cobbler_squad
Cc: r-help@r-project.org
Subject: Re: [R] File normalization
My code substracts the median absolute value. If you want to divide by it,
the code must
Of Joris Meys
> Sent: Tuesday, May 25, 2010 9:54 AM
> To: cobbler_squad
> Cc: r-help@r-project.org
> Subject: Re: [R] File normalization
>
> My code substracts the median absolute value. If you want to divide by it,
> the code must be :
> apply(some_dataset,2,functi
-help@r-project.org
Subject: Re: [R] File normalization
My code substracts the median absolute value. If you want to divide by it,
the code must be :
apply(some_dataset,2,function(
>
> x){
>x/median(abs(x))
> })
Thanks to Peter Langfelder for pointing out my mistake.
On Tue, May 2
My code substracts the median absolute value. If you want to divide by it,
the code must be :
apply(some_dataset,2,function(
>
> x){
>x/median(abs(x))
> })
Thanks to Peter Langfelder for pointing out my mistake.
On Tue, May 25, 2010 at 6:24 PM, Joris Meys wrote:
> What kind of normalizatio
What kind of normalization do you want to do?
If you want to divide all columns by the median absolute value, try :
apply(some_dataset,2,function(x){
x-median(abs(x))
})
also look at ?scale for normalization using the average and the sd.
Cheers
Joris
On Tue, May 25, 2010 at 6:01 PM, cobbler_s
Dear all,
I have a file with 57 columns (671 time points in each column)
File looks like this:
10.279191 -1.203200e-02 -0.166772 6.12080e-02 0.196379
4.591900e-02 0.293689
20.267017 -1.150700e-02 -0.159463 5.85400e-02 0.187775
4.392200e-02 0.280854
30.053778 -2.
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