SPSS Amos gives you the power to easily perform structural equation modeling (SEM) to build models with more accuracy than standard multivariate statistics techniques.
Analysis & Modeling
Analysis refers to software intended to analyze data, whether it be mathematical, instrumental, quantitative, or qualitative. This category includes many research and statistical packages as well as graphing tools for showing data trends and correlations.
Modeling software focuses on the digital creation or the digital re-creation of a design. Modeling software allows for digital simulation to explore possibilities, theories, and simulate results. It also allows for easy viewing of the design from perspectives that would otherwise be difficult.
This category includes mapping tools, Geographical Information Systems (GIS) tools, plotting tools, landscape analysts, and geological structure tool. Also included is Software for statistical gathering, analysis, computation, and visualization. Often used in research, polling, or surveying.
SPSS Amos
Stata
Stellarium
Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope.
It is being used in planetarium projectors. Just set your coordinates and go.