[BioC] Get gene expression data by averaging probes corresponding to the gene?

[Gordon K Smyth]

Dear anonymous,

The avereps() function the limma package does exactly this.

Best wishes
Gordon

> Date: Thu, 01 Apr 2010 15:41:52 +0800 (CST)
> From: "697820169" <697820169 at mail.ndmctsgh.edu.tw>
> To: bioconductor at stat.math.ethz.ch
> Subject: [BioC] Get gene expression data by averaging probes
> 	corresponding	to the gene?
>
> I am trying to do a pooled microarray analyze with arrays
> of different platform. In order to have a comparable data,
> I have come to the idea to convert the probes in each array
> to corresponding gene symbols, and use these gene expression
> data instead of probe expression as the data to analyze.
>
> I've tried to find a function of averaging probes to
> corresponding genes, but found nothing that meet my need.
> I have done a few google searches like "bioc average probe
> intensity to gene", "bioconductor average probe to gene",
> etc... and came up with no usable information.
>
> If anyone can give me a hint where I can find the function I
> need, I will very much appreciate.

______________________________________________________________________
The information in this email is confidential and intend...{{dropped:4}}