How To Calculate Support and Resistance levels using Swift?

@maci 

Support and resistance levels are important technical analysis tools used by traders to make trading decisions. These levels are typically identified by looking at historical price data and can provide signals for potential entry and exit points in the market. Here's how you can calculate support and resistance levels using Swift:

1. Import the necessary libraries:

1

import Foundation

1. Define a function to calculate support and resistance levels based on historical price data:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11

func calculateSupportResistance(levels: Int, data: [Double]) -> (support: Double, resistance: Double) {
    let sortedData = data.sorted()
    
    let supportIndex = levels
    let resistanceIndex = sortedData.count - levels
    
    let support = sortedData[supportIndex]
    let resistance = sortedData[resistanceIndex]
    
    return (support, resistance)
}

1. Provide historical price data in the form of an array:

1

let historicalData = [100.5, 102.3, 98.7, 105.6, 99.2, 101.8, 97.1, 103.4, 96.5, 106.2]

1. Call the calculateSupportResistance function with the desired number of levels:

1
2
3
4

let levels = 2
let levelsResult = calculateSupportResistance(levels: levels, data: historicalData)
print("Support level: (levelsResult.support)")
print("Resistance level: (levelsResult.resistance)")

This code will output the support and resistance levels based on the historical price data provided. You can adjust the number of levels to calculate more or fewer support and resistance levels as needed. Remember that support and resistance levels are not always exact numbers but rather areas where price action is likely to react.