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series_subtract()

Applies to: ✅ Microsoft Fabric ✅ Azure Data Explorer ✅ Azure Monitor ✅ Microsoft Sentinel

Calculates the element-wise subtraction of two numeric series inputs.

Syntax

series_subtract(series1, series2)

Learn more about syntax conventions.

Parameters

Name	Type	Required	Description
series1, series2	dynamic	✔️	Arrays of numeric values, the second array to be element-wise subtracted from the first array.

Returns

A dynamic array of calculated element-wise subtract operation between the two inputs. Any non-numeric element or non-existing element, such as in the case of arrays of different sizes, yields a null element value.

Example

Run the query

range x from 1 to 3 step 1
| extend y = x * 2
| extend z = y * 2
| project s1 = pack_array(x,y,z), s2 = pack_array(z, y, x)
| extend s1_subtract_s2 = series_subtract(s1, s2)

Output

s1	s2	s1_subtract_s2
[1,2,4]	[4,2,1]	[-3,0,3]
[2,4,8]	[8,4,2]	[-6,0,6]
[3,6,12]	[12,6,3]	[-9,0,9]