age_pyramids

class age_pyramids(bins=None)

Bases: Analyzer

Records age pyramids for each timestep.

self.bins

A list of ages, default is a sequence from 0 to max_age + 1.

self.data

A matrix of shape (number of timesteps, number of bins - 1) containing age pyramid data.

Attributes

auto_state_list	List of "automatic" states with boolean type (ss.BoolState) that were added via define_states()
dt	Get the current module timestep
now	Shortcut to self.t.now()
state_dict	Return a flat dictionary (objdict) of all states
state_list	Return a flat list of all states (ss.Arr objects)
ti	Get the current module timestep
timevec	Shortcut to self.t.timevec

Methods

init_pre(sim, force=False)

Initializes bins and data with proper shapes.

step()

Records histogram of ages of all alive individuals at a timestep such that self.data[timestep] = list of proportions where index signifies age

plot()

Plots self.data as 2D pyramid plot

plot3d()

Plots self.data as 3D pyramid plot