Octofitter.@system — Macro@system [system_name] begin
+end [likelihood_objects...]Generate a Planet model named planet_name. A variable will be created with the name [planet_name] in the current scope. Orbit_Type specifies the orbit parameterization from PlanetOrbits.jl. You must provide all input variables needed for the selected orbit type (see PlanetOrbits.jl documentation). Following that is a block of variable assignments. Variables with a ~ will be free variables with a prior distribution given by the right-hand-side (a UnivariateDistribution from Distributions.jl or a KDEDist). Calculated quantities are also allowed. These may reference other variables using the planet name followed by a dot and the name of the variable. Variables from other planets in a single system are not accessible. You can access other variables in the current local scope, but these bindings are only guaranteed to be resolved a single time. Note that using non-constant global variables in calculated expressions can lead to poor performance. Finally, the planet model can be conditioned on data by supplying zero or more likelihood objects.