A funnel chart shows retention through a series of checkpoints.
#Array methods funnel(names::AbstractVector, values::AbstractVector{<:Union{Missing, Real}})
legend::Bool = false sort::String = "descending" kwargs... #modifies top-level `EChart` fields
using ECharts v = [100,60,80,70,50] n = ["A", "B", "C", "D", "E"] fn = funnel(n, v)