series_magnitude()
Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel
Calculates the magnitude of series elements. This is equivalent to the square root of the dot product of the series with itself.
Syntax
series_magnitude(series)
Learn more about syntax conventions.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
| series | dynamic |
✔️ | Array of numeric values. |
Returns
Returns a double type value representing the magnitude of the series.
Optimizing performance
For enhanced performance and reduced storage requirements when using this function, consider using the Vector16 encoding policy for storing floating-point vectors that don't require 64 bits precision, such as ML vector embeddings. The Vector16 profile, which utilizes the Bfloat16 floating-point representation, can significantly optimize the operation and reduce storage size by a factor of 4. For more details on the Vector16 encoding policy, refer to the Encoding Policy Types.
Example
print arr=dynamic([1,2,3,4])
| extend series_magnitude=series_magnitude(arr)
Output
| s1 | s2 | series_magnitude |
|---|---|---|
| [1,2,3,4] | 5.4772255750516612 |