|transformList| is what you are looking for:

|tl <- transformList(c("FL1-H","FL2-H"), log)
colnames(tl)
data(GvHD)
transform(GvHD[[1]], tl)|

Mike Jiang

On 11/19/2013 01:00 PM, Liu, Hongye wrote:

> Dear Dr. Jiang,
>
> How are you? I am a new user of flowCore and I have run into a problem 
> which I hope you can help me.
> I wanted to iterate through the parameters (character strings) when I 
> use the transform() function on the flow frame data, but I found I can 
> only
> input backtick-ed parameter names into the function. For example, I 
> can't do transform(…,"FL1-H" = log("FL1-H"),…);
> Do you know a way to deal with it? Thank you very much for your help!
>
> Best,
>
> Hongye
>
>
> Hongye Liu, PhD Research Associate
> Laboratory of Systems Pharmacology,
> Dept. of Systems Biology.
> Harvard Medical School
> Armenise I #523,
> Office # 617-432-6081
> Email: Hongye_Liu@hms.harvard.edu <mailto:Hongye_Liu@hms.harvard.edu>


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