Values which are shared between all particles in a group and are not mutated by them - the model parameter values for that group
Internal state values which can be mutated by generators, used to improve efficiency of the system by e.g. caching calculation results for use by other particles.
Type of each data point which will be compared with system state.
Generator (model) implementation for the System
Array of TShared, each representing the parameters for a group of particles
Initial time for the system
Time step to be used when updating the system
Number of particles per group
Optionalrandom: RandomRandom number generator which may be used by the generator
Returns the current state of all particles in the system
Returns the current time of the system
Sets the current time of the system
Compares the state of all particles in the syatem with observed data, and returns an NdArray of log likelihoods of each particle state given the data, where the NdArray has shape [nGroups, nParticles]
Runs the system from its current time to the given time, causing its state to be updated. Calls the update method on the generator for each particle.
The time to run to
Initialises each particle by calling the initial method on the generator.
Updates shared (parameter) values for all groups in the system.
Updated parameter values. The length must match the existing number of groups in the system.
Implementation of ComparableSystem for discrete systems, for use with generators which support comparison to data.