PublicFunctions/Get-FMPWeightedMovingAverage.ps1
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function Get-FMPWeightedMovingAverage { <# .SYNOPSIS Retrieves Weighted Moving Average (WMA) technical indicator data for a specified symbol. .DESCRIPTION The Get-FMPWeightedMovingAverage function calculates and returns the Weighted Moving Average (WMA) technical indicator for a given symbol. This indicator assigns more weight to recent data points and less weight to data points in the distant past. .PARAMETER Symbol Specifies the stock symbol (e.g., AAPL, MSFT) for which to retrieve the WMA. This parameter is mandatory. .PARAMETER PeriodLength Specifies the number of periods to consider for calculating the WMA. This parameter is mandatory. .PARAMETER Timeframe Specifies the timeframe to use for calculations. Valid values include: 1min, 5min, 15min, 30min, 1hour, 4hour, 1day, 1week, 1month. The default value is "1day". .PARAMETER ApiKey Specifies your Financial Modeling Prep API key. If omitted, the function attempts to retrieve it using Get-FMPCredential. .EXAMPLE Get-FMPWeightedMovingAverage -Symbol AAPL -PeriodLength 20 -Timeframe 1day .NOTES This is a premium endpoint, and requires a paid subscription. This function uses the Financial Modeling Prep API's WMA endpoint. For more information, visit: https://site.financialmodelingprep.com/developer/docs/stable/weighted-moving-average #> [CmdletBinding()] Param ( [Parameter(Mandatory = $true)] [string] $Symbol, [Parameter(Mandatory = $true)] [int] $PeriodLength, [Parameter(Mandatory = $false)] [ValidateSet("1min", "5min", "15min", "30min", "1hour", "4hour", "1day", "1week", "1month")] [string] $Timeframe = "1day", [Parameter(Mandatory = $false)] [string] $ApiKey = (Get-FMPCredential) ) Begin { if (-not $ApiKey) { $ApiKey = Read-Host "Please enter your Financial Modeling Prep API key" } $baseUrl = "https://financialmodelingprep.com/stable/technical-indicators/wma" } Process { $queryParams = @{ symbol = $Symbol periodLength = $PeriodLength timeframe = $Timeframe apikey = $ApiKey } $queryString = ($queryParams.GetEnumerator() | ForEach-Object { "$($_.Key)=$($_.Value)" }) -join "&" $url = "{0}?{1}" -f $baseUrl, $queryString $headers = @{ "Upgrade-Insecure-Requests" = "1" } try { $response = Invoke-RestMethod -Uri $url -Method Get -Headers $headers -ErrorAction Stop return $response } catch { throw "Error retrieving Weighted Moving Average data: $_" } } }; |