Trend IndicatorsInstall

Overview

This node calculates various trend indicators based on OHLCV (Open, High, Low, Close, Volume) financial data. It supports a wide range of technical analysis indicators commonly used in trading and market analysis to identify trends, momentum, volatility, and potential reversals.

Typical use cases include:

• Enhancing trading strategies by adding calculated indicators like Moving Averages, MACD, ADX, etc.
• Analyzing historical price data to detect trend strength or changes.
• Generating signals for automated trading bots or alerts.
• Visualizing indicator values alongside price charts.

For example, a user can input OHLCV data from a cryptocurrency exchange and calculate the Simple Moving Average (SMA) and Moving Average Convergence Divergence (MACD) to help decide entry or exit points.

Properties

Output

The node outputs a JSON object per input item with the following structure:

• Each selected indicator is a key with an object value containing:
  • parameters: The parameters used for that indicator's calculation (e.g., periods).
  • result: The array of calculated indicator values or objects depending on the indicator.

If the "Return Type" option is set to "With Metadata", an additional metadata field is included with:

• inputLength: Number of OHLCV data points processed.
• indicatorsCount: Number of indicators calculated.
• calculationTimestamp: ISO timestamp when the calculation was performed.

No binary data output is produced by this node.

Example output snippet (simplified):

{
  "simpleMovingAverage": {
    "parameters": { "period": 20 },
    "result": [ ...array of SMA values... ]
  },
  "movingAverageConvergenceDivergence": {
    "parameters": { "fast": 12, "slow": 26, "signal": 9 },
    "result": [ ...array of MACD objects... ]
  },
  "metadata": {
    "inputLength": 100,
    "indicatorsCount": 2,
    "calculationTimestamp": "2024-06-01T12:00:00.000Z"
  }
}

Dependencies

• This node depends on two external JavaScript libraries for indicator calculations:

  • indicatorts library: Provides many of the trend indicator functions.
  • technicalindicators library: Used specifically for the Average Directional Index (ADX).

• No external API keys or services are required.

• Input OHLCV data must be provided as a JSON string in the expected format.

Troubleshooting

• Failed to parse OHLCV data: If the input OHLCV JSON string is invalid or not an array, the node will throw an error. Ensure the input is a valid JSON string representing a non-empty array of arrays with OHLCV values.
• Unsupported indicator: If an indicator name outside the supported list is specified, the node will throw an error. Verify the indicator names match the available options.
• Empty or missing OHLCV data: The node requires non-empty OHLCV data to compute indicators. Providing empty data will cause errors.
• Incorrect parameter values: Using invalid periods or parameters (e.g., negative numbers) may lead to unexpected results or errors. Use sensible positive integers or floats as indicated.
• Continue On Fail: If enabled, the node will continue processing other items even if one fails, returning error messages in the output JSON.

Links and References

• Technical Indicators Library (npm)
• Indicatorts Library (GitHub)
• General info on OHLCV data: https://www.investopedia.com/terms/o/ohlc.asp
• Common Technical Analysis Indicators: https://www.investopedia.com/terms/t/technicalindicator.asp