trivial — L module

The trivial module outputs the emergence rate of adult mosquitoes by calling a trace function, $$F_\alpha(t) = \Lambda S(t) T(t) K(t)$$ where

• \(\Lambda\) or Lambda is the mean number of adult female mosquitoes emerging per day

• \(S(t)\) or F_season is a seasonal pattern

• \(T(t)\) or F_trend is a trend pattern

• \(K(t)\) or F_shock is a perturbation

Parameters

Lambda

the mean daily emergence rate

season_par

parameters for make_function: F_season=make_function(season_par)

trend_par

parameters for make_function: F_trend=make_function(trend_par)

shock_par

parameters for make_function: F_shock=make_function(shock_par)

The default setup option is season_par = trend_par = shock_par = makepar_F_one().

Get

• get_L_pars — the trivial method returns all the parameters

• get_mean_forcing — get Lambda

• get_season — returns season_par

• get_trend — returns trend_par

• get_shock — returns shock_par

Change

• change_L_pars — change parameters by name

• change_mean_forcing — changes Lambda

• change_season — changes elements of season_par

• change_trend — changes elements of trend_par

• change_shock — changes elements of shock_par

Notes

1. The module has no state variables.

2. The size of an object saved by saveRDS balloons if it saves a function, so saveXDS function strips the functions and readRDS remakes the function from the stored parameters. F_season, F_trend, and F_shock can be set up manually by passing any user defined function. If so, the user should use saveRDS and readRDS rather than saveXDS and readXDS

3. Setup expects that membership= c(1:nPatches), but any membership vector works.