trivial — MY module — trivial_MY • ramp.xds

The trivial MY module configures two trace functions:

infectious biting: $$F_{fqZ}(t) = fqZ S(t) T(t) K(t)$$
egg laying: $$F_G(t) = G S(t) T(t) K(t)$$

where

\(G\) or eggs is the mean egg laying rate
\(fqZ\) or fqZ is the mean number of infectious bites on humans, per patch
\(S(t)\) 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

eggs: the mean number of eggs laid, per day
Z: the mean density of infectious mosquitoes
f: the blood feeding rate
q: the human fraction
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 options:

for the make_function parameters, season_par = trend_par = shock_par = makepar_F_one().
for the bionomic parameters, f=q=Z=eggs=1.

Get

get_MY_pars — the trivial method returns all the parameters
get_mean_forcing — returns Z
get_f — returns f
get_q — returns q
get_season — returns season_par
get_trend — returns trend_par
get_shock — returns shock_par

Note: use get_MY_pars to inspect eggs

Change

change_MY_pars — change parameters by name
change_mean_forcing — changes Z
change_season — changes elements of season_par
change_trend — changes elements of trend_par
change_shock — changes elements of shock_par

Note: use change_MY_pars to change eggs

Notes

The module has no state variables.
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