Corrected zero order phase and chemical shift offset in 1H MRS data from the brain. — phase_ref_1h_brain • Spectroscopy Analysis Tools (spant)

Corrected zero order phase and chemical shift offset in 1H MRS data from the brain.

Usage

phase_ref_1h_brain(
  mrs_data,
  mean_ref = FALSE,
  ret_corr_only = TRUE,
  xlim = c(4, 1.9),
  p_deg = 3,
  sp_N = 2,
  basis_type = "poly"
)

Arguments

mrs_data: MRS data to be corrected.
mean_ref: apply the phase and offset of the mean spectrum to all others. Default is FALSE.
ret_corr_only: return the corrected data only.
xlim: frequency range in ppm to consider.
p_deg: polynomial baseline order.
sp_N: number of spline functions, note the true number will be sp_N + sp_deg.
basis_type: may be one of "poly" or "spline".

Value

corrected MRS data.