[FieldTrip] How do you prevent ft_resample from filtering your trigger channels?

[Aaron Schurger]

Hi,
It seems that ft_resample applies to all of the channels in the data
structure. During resampling fieldtrip applies a filter, which adds
artifacts to the step function in the trigger channels. For
downsampling at least it would be great if you could specify a subset
of channels to be downsampled by simple decimation (i.e. skip the
lowpass filter). Is there any built-in way to do this?
Thanks!
Aaron

-- 
Aaron Schurger, PhD
Senior researcher
Laboratory of Cognitive Neuroscience
Brain-Mind Institute, Department of Life Sciences
École Polytechnique Fédérale de Lausanne
Station 19, AI 2101
1015 Lausanne, Switzerland
+41 21 693 1771
aaron.schurger at epfl.ch
http://lnco.epfl.ch/