[R] baseline shift / detrend

[Gabor Grothendieck]

Peter Soros <soros <at> mac.com> writes:

> 
> Hello,
> 
> I am analyzing data of biological motion (mouth movements) over time (~ 
> 10 mins). There is a considerable baseline shift which appears to be a 
> linear trend. Is it possible to get rid of this baseline shift using R?
> Any help is appreciated!


The following will detrend y:

resid(lm(y ~ seq(y)))