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Rogers & Satchell Volatility EstimationFirst off, a huge thank you to the following people:
theheirophant: www.pulsewire.com
alexgrover: www.pulsewire.com
NGBaltic: www.pulsewire.com
The Rogers & Satchell function is a volatility estimator that outperforms other estimators when the underlying follows a geometric Brownian motion with a drift (historical data mean returns different from zero). As a result, it provides a better volatility estimation when the underlying is trending. However, the Rogers & Satchell estimator does not account for jumps in price (gaps). It assumes no opening jump. The function uses the open, close, high, and low price series in its calculation and it has only one parameter, which is the period to use to estimate the volatility.
This script allows you to transform the volatility reading. The intention of this is to be able to compare volatility across different assets and timeframes. Having a relative reading of volatility also allows you to better gauge volatility within the context of current market conditions.
For the signal lie I chose a repulsion moving average to remove choppy crossovers of the estimator and the signal. This may have been a mistake, so in the near-future I might update so that the MA can be selected. Let me know if you have any opinions either way.
Want to Learn?
If you'd like the opportunity to learn Pine but you have difficulty finding resources to guide you, take a look at this rudimentary list: docs.google.com
The list will be updated in the future as more people share the resources that have helped, or continue to help, them. Follow me on Twitter to keep up-to-date with the growing list of resources.
Suggestions or Questions?
Don't even kinda hesitate to forward them to me. My (metaphorical) door is always open. Indicator
SadLittleThings Price Compare With Offset MTF by RRBSadLittleThings Price Compare With Offset MTF by RagingRocketBull 2018
Version 1.0
This indicator lets you compare multiple assets across different timeframes, supports offsets and alpha multipliers.
Standard PulseWire Compare doesn't have Offset/Timeframe/Multiplier options, hence this indicator.
Features:
- compare current asset's price with 2 custom ext OHLC sources
- plot sources as lines/bars/candles
- use offset:
- for lines - both positive/negative offsets, unlimited
- for bars/candles - only positive offsets <= 5000
- specify timeframe for each source
- uses timeframe textbox instead of input resolution dropdown to allow for 240 120 and other custom TFs
- support for timeframes in H: H, 2H, 4H etc
- show/hide sources
- colorize sources
- convert source price to 1000s, mlns, or blns using alpha multiplier
- total bars counter
Notes on using offsets:
- Max offset is defined by study max_bars_back which is limited to 5000 for free accounts. This variable specifies the number of history bars an indicator can access.
- if you see the 'internal server study error' => one of the indexes of ohlc series is out of bounds (i.e. close ) => decrease the offset <= 5000 or switch to line type
- you will be limited only by the total number of bars in history (n) +/- 1 full screen of empty bars
- you can't scroll past the beginning of history - 1 empty screen and past the end of history + 1 empty screen to be able to still see the line with applied offset
- before applying a large offset, scroll back long enough to make sure you have enough history loaded
- if you have a long history the indicator will get slower, its UI less responsive. Reloading the page may fix that.
- you will not see source's history past the beginning of the current asset - open the chart with the longest history first (i.e. BLX, not COINBASE)
- Make sure that the Left Price Scale shows up with Auto Fit Data enabled. You can reattach the indicator to a different scale in Style.
- you may not be able to plot intraday TFs < current TF, because free accounts are limited to TFs >= D1 (i.e. D, 2D, 3D, W), but you can still plot, say, H4+ on a lower TF H1 chart
1. uses plot*, security, change
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