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EXCEL SCAN FUNCTION
Excel SCAN Function Introduction
Scans an array by applying a LAMBDA to each item, returning an array containing each intermediate value.
Description of Excel SCAN Function
Syntax :
=SCAN ([initial_value], array, lambda(accumulator, value))
Parameters :
- [initial value] – Defines the accumulator’s starting value.
- array – An array that will be examined.
- lambda – A LAMBDA function that is used to scan the array. The LAMBDA considers two variables:
- accumulator – A value that is totalled and returned as the final result.
- value – The computation performed on each array element.
Step By Step Guide of SCAN Function
Example :
To create a list of factorials insert the sample data into cells A1:C2, and then copy the formula into cell D4:
=SCAN(1, A1:C2, LAMBDA(a,b,a*b))
Key Points
- To set the initial value for the accumulator parameter, use the initial value argument. Set the starting value to “” if you’re working with text.
- If you supply an improper LAMBDA function or a wrong amount of arguments, you will receive a #VALUE! error named “Incorrect Parameters.”
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