dual_reg_parc {fMRItools} | R Documentation |
Multiple regression for parcel data
Description
Multiple regression for parcel data
Usage
dual_reg_parc(
BOLD,
parc,
parc_vals,
scale = c("local", "global", "none"),
scale_sm_xifti = NULL,
scale_sm_FWHM = 2,
TR = NULL,
hpf = 0.01,
GSR = FALSE
)
Arguments
BOLD |
Subject-level fMRI data matrix ( |
parc |
The parcellation as an integer vector. |
parc_vals |
The parcel values (keys) in desired order, e.g.
|
scale |
|
scale_sm_xifti , scale_sm_FWHM |
Only applies if |
TR |
The temporal resolution of the data, i.e. the time between volumes,
in seconds. |
hpf |
The frequency at which to apply a highpass filter to the data
during pre-processing, in Hertz. Default: The highpass filter serves to detrend the data, since low-frequency variance is associated with noise. Highpass filtering is accomplished by nuisance regression of discrete cosine transform (DCT) bases. Note the |
GSR |
Center BOLD across columns (each image)? This
is equivalent to performing global signal regression. Default:
|
Value
A list containing
the subject-level independent components S (Q \times V
),
and subject-level mixing matrix A (TxQ
).