PET time-activity curves calculator with this program. fit2dat help you calculate the PET time-activity curves (TACs) using parameters of a mathematical function, which have been fitted to the data previously.
Fitfile must be in the DFT fit format; it contains the parameters of the functions fitted to one or more PET TACs.

Usage: fit2dat [Options] <Fitfile> <TAC file>

Fitfile must be in the DFT fit format; it contains the parameters of the functions fitted to one or more PET TACs.

Options:
-i Integrals of functions from zero to sample time are calculated; not available for all functions
-h or --help
Print this message and exit
--version or --build
Print software build information and exit
--silent
Program works silently, printing only error and warning messages
--verbose
Program prints lots of information about what it is doing. The sample times, where function values are to be calculated, can be specified with one of the following options:
-A[=<stop>]
autointerpolate the data from 0 to stop time, or to fit range end time (default), with decreasing sample frequency
-C=<start,stop,step>
specify the first and last sample time, and the sample frequence
-F=<file>
specify a DFT file, which contains the time framing information
-N=<nr>
specify the number of sample points between fit start and end times
-X=<x1,x2,x3,...>
specify the sample times individually.

The license of this software is Freeware, you can free download and free use this calculator software.