Add Gaussian noise with this program. var4dat can add Gaussian noise to time-activity data.
If optional isotope letter is specified, variance is increased by decay. If datafile contains weights, then the specified amount of variance is added to frames with weight=1, and higher or lower variance to those frames with lower or higher weight.

Usage:
var4dat <CV%> <Data file> <Output file> [Isotope code]

Options:
-S[eed]=<seed for random number generator>
Computer clock is used by default
-sec
If datafile does not contain time unit, times are by default assumed to be in minutes. Use this option to set time unit to sec.
-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 license of this software is Freeware, you can free download and free use this calculator software.