split_pvc {tacmagic}

Subset PMOD tacs with or without PVC

Description

When partial volume correction (PVC) is used in PMOD, the saved tac files have ROIs with and without PVC. When loaded with load_tac()) it may be desirable to keep only either the PVC or non-PVC tacs. This returns a tac object that is a subset of the input tac object with only the PVC or non-PVC tacs. This relies on PMOD's convention of labelling tac columns with "_C".

Usage

split_pvc(tac, PVC = TRUE)

Arguments

tac

The time-activity curve data from loading function (PMOD)

PVC

If TRUE, includes columns with "_C", if FALSE, ones without "_C"

Value

Time-activity curve object

See Also

Other tac functions: plot.tac(), save_tac(), tac_roi()

Examples

# f_raw_tac and f_raw_vol are the filenames of PMOD-generated files
f_raw_tac <- system.file("extdata", "AD06.tac", package="tacmagic") 

tac <- load_tac(f_raw_tac)
tac_pvc <- split_pvc(tac, TRUE)
tac_nc <- split_pvc(tac, FALSE)