Trendlines

maxima(x::Array{T}; threshold::T=0.0, order::Int=1) where {T<:Real}

Estimate local maxima of a time series

minima(x::Array{T}; threshold::T=0.0, order::Int=1) where {T<:Real}

Estimate local minima of a time series

resistance(x::Array{T}; order::Int=1, threshold::T=0.0) where {T<:Real}

Estimate resistance lines of a financial time series

support(x::Array{T}; order::Int=1, threshold::T=0.0) where {T<:Real}

Estimate support lines of a financial time series