As mentioned in the subject, I wanted to perform a simple subtraction operation on individual values/elements within a multivalue field. So for example, I have a MV
I will iterate over the items, and perform the subtraction to get the following:
|Iteration 1||diff = 0 (since it's the first element)|
|Iteration 2||diff = abs(79 - 23)|
|Iteration 3||diff = abs(45 - 79)|
|Iteration 4||diff = abs(23 - 45)|
|Iteration 5||diff = abs(38 - 23)|
So far, here's what I did:
| makeresults | eval a1="23,79,45,23,29" | makemv delim="," a1 | mvexpand a1 | eval start=0 | eval i=0 | foreach a1 [ eval tmp='<<FIELD>>' | eval diff=if(start==0, 0, "subtract_element[i+1]_with_subtract_element[i]") | eval i=i+1 | eval start=1 ]
I haven't implemented the subtraction logic yet, since obviously, I am having a challenging time in doing it. I've spent almost 3 hours already experimenting, but no luck.
Another weird thing (for me), which I can't explain, why the variable "i" is not incrementing even if I'm updating it within the foreach block.
Hope my question makes sense, and as usual, thank you very much in advance.
Any ideas are greatly appreciated