Grover Llorens Cycle Oscillator [alexgrover & Lucía Llorens]

Cycles represent relatively smooth fluctuations with mean 0 and of varying period and amplitude, their estimation using technical indicators has always been a major task. In the additive model of price, the cycle is a component :

Price = Trend + Cycle + Noise

Based on this model we can deduce that :

Cycle = Price - Trend - Noise

The indicators specialized on the estimation of cycles are oscillators, some like bandpass filters aim to return a correct estimate of the cycles, while others might only show a deformation of them, this can be done in order to maximize the visualization of the cycles.

Today an oscillator who aim to maximize the visualization of the cycles is presented, the oscillator is based on the difference between the price and the previously proposed Grover Llorens activator indicator. A relative strength index is then applied to this difference in order to minimize the change of amplitude in the cycles.

The Indicator

The indicator include the length and mult settings used by the Grover Llorens activator. Length control the rate of convergence of the activator, lower values of length will output cycles of a faster period.

here length = 50

Mult is responsible for maximizing the visualization of the cycles, low values of mult will return a less cyclical output.

Here mult = 1

Finally you can smooth the indicator output if you want (smooth by default), you can uncheck the option if you want a noisy output.

The smoothing amount is also linked with the period of the rsi .

Here the smoothing amount = 100.


An oscillator based on the recently posted Grover Llorens activator has been proposed. The oscillator aim to maximize the visualization of cycles.

Maximizing the visualization of cycles don't comes with no cost, the indicator output can be uncorrelated with the actual cycles or can return cycles that are not present in the price. Other problems arises from the indicator settings, because cycles are of a time-varying periods it isn't optimal to use fixed length oscillators for their estimation.

Thanks for reading !

If my work has ever been of use to you you can donate, addresses on my signature :)

Mar 04
版本注释: Fixed repainting issues
从收藏脚本中删除 添加到收藏脚本
« Je suis las des cruautés de mes semblables, qui ne sont pas mes pareils.

« Je prendrai l’essor et je m’envolerai vers la mer.

« Je connaîtrai le goût des brises du large. J’entendrai les grands cris de la tempête.


Hi Alex, Thanks for sharing your Great Work!!!!!!!!! It is very nice!!!!!!
+1 回复
+1 回复
Repainting issues have been fixed, note however that the original indicator isn't supposed to be recalculated every time it is loaded, only the last value of each variables in the indicator need to be stored in order for the indicator to work has intended. We can say that the indicator has been adapted to the way Tradingview deal with indicator recalculations.
首页 股票筛选器 外汇筛选器 加密货币筛选器 财经日历 如何运作 图表功能 价格 推荐朋友 网站规则 帮助中心 网站 & 经纪商解决方案 插件 图表解决方案 轻量图表库 博客 & 新闻 Twitter
概览 个人资料设置 账户和账单 推荐朋友 我的客服工单 帮助中心 已发表观点 粉丝 正在关注 私人消息 在线聊天 退出