Description Usage Arguments Slots Author(s) References Examples

Basic class for simulation-based approximate inference using Synthetic Likelihood methods.

1 |

`...` |
See section "Slots". |

- param
Named vector of parameters used by

`object@simulator`

(`numeric`

).- simulator
Function that simulates from the model (

`function`

). It has to have prototype`fun(param, nsim, extraArgs, ...)`

. If`summaries()`

is not specified the`simulator()`

has output a matrix with`nsim`

rows, where each row is a vector of simulated statistics. Otherwise it can output any kind of object, and this output will be passed to`summaries()`

.- summaries
Function that transforms simulated data into summary statistics (

`function`

). It has to have prototype`fun(x, extraArgs, ...)`

and it has to output a matrix with`nsim`

rows, where each row is a vector of simulated statistics. Parameter`x`

contains the data.- data
Object containing the observed data or statistics (

`ANY`

).- extraArgs
List containing all the extra arguments to be passed to

`object@simulator`

and`object@summaries`

(`list`

).- plotFun
Function that will be used to plot

`object@data`

. Prototype should be`fun(x, ...)`

(`function`

).

Matteo Fasiolo <matteo.fasiolo@gmail.com>

Simon N Wood. Statistical inference for noisy nonlinear ecological dynamic systems. Nature, 466(7310):1102–1104, 2010.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 | ```
#### Create Object
ricker_sl <- synlik(simulator = rickerSimul,
summaries = rickerStats,
param = c( logR = 3.8, logSigma = log(0.3), logPhi = log(10) ),
extraArgs = list("nObs" = 50, "nBurn" = 50),
plotFun = function(input, ...)
plot(drop(input), type = 'l', ylab = "Pop", xlab = "Time", ...)
)
# Simulate from the object
ricker_sl@data <- simulate(ricker_sl)
ricker_sl@extraArgs$obsData <- ricker_sl@data # Needed by WOOD2010 statistics
plot(ricker_sl)
``` |

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