bptf function from FSL

Copy of highpass filter as implemented by bptf in FSL. The results are very similar but not identical.

fsl_bptf(orig_data, HP_sigma = 2000)

Arguments

orig_data	\(T\) by \(V\) data matrix whose columns will be detrended
HP_sigma	The frequency parameter for the highpass filter

Value

The data with detrended columns

Details

Sources: https://cpb-us-w2.wpmucdn.com/sites.udel.edu/dist/7/4542/files/2016/09/fsl_temporal_filt-15sywxn.m https://github.com/rordenlab/niimath/blob/master/src/core32.c

References

• Jenkinson, M., Beckmann, C. F., Behrens, T. E. J., Woolrich, M. W. & Smith, S. M. FSL. NeuroImage 62, 782-790 (2012).