Genometric Analysis Simulation Program (GASP)

Using G.A.S.P.

The Genometric Analysis Simulation Program (G.A.S.P.) generates samples of family data based on user specified models. Both trait and marker data can be generated. The user first specifies a list of components, including genetic markers. Each trait is then created by specifying the desired components weighted by their respective contributions to the phenotypic variance for that trait. Components can be unique to a single trait or shared by multiple traits to create pleiotropic effects. The user sets parameters, specifying information about the simulation (e.g. title, number of samples, family size and structure, as well as generating models, in the G.A.S.P. parameter file.

Version 3.31 of G.A.S.P. is written in ANSI standard FORTRAN-77. Simulation and random number generation modules are provided, as well as source code for a skeleton driver and an example including a "dataonly" driver. The user may also customize the driver to modify generated traits, to build more complex models, and to write out data which can be saved for external analysis or immediately analyzed by directly invoked procedures.

Components

A description of the types of components that can be used to create traits

Traits

A description of the kinds of traits that can be simulated

Parameter descriptions

A description of the parameters of the simulation

Parameter file

A description of the format of the G.A.S.P. parameter file that defines the model to be simulated

Examples

Several examples of G.A.S.P. input parameter files and the resulting simulated data files

Variable and array descriptions

A table of the variables and arrays used in G.A.S.P. and available to the driver, with a brief description of each.

Citation

Disclaimer

License agreement

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