An update to the post above:
I have found the command 1dBport, which does exactly this. However, it always seems to output sine/cosine regressors of one timepoint less than the number of volumes. Is there a way to make it match the number of volumes so I can perform a regression, or am I misinterpreting how to use these regressors?
Would it be appropriate to increase the number of volumes by 1 to output my intended regressor length, or will this slightly frequency shift the band power of my intended bandpass?
Thank you in advance!
Will