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How can i find difference b/w each MV Item?

reverse
Contributor

alt text

How can i find difference b/w each MV Item?
So far i was able to do only one difference ...

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1 Solution

woodcock
Esteemed Legend

OK, I get it now, you need diffs between the numbers inside of a single multi-value field! try this:

| makeresults 
| eval mvfield="10 30 100 234 64 432 3 632 87"
| makemv mvfield
| eval mvdiff = tonumber(mvindex(mvfield, 0)) - tonumber(mvindex(mvfield, 1))
| foreach 1 2 3 4 5 6 7 8 9 10 11 12 
    [eval _t3Mp = tonumber(mvindex(mvfield, <<FIELD>>)) - tonumber(mvindex(mvfield, <<FIELD>> + 1))
  | eval mvdiff = mvappend(mvdiff, _t3Mp) ]
| fields - _t3Mp
| eval mvdiff = mvappend(mvdiff, "N/A")

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theChain
Explorer
0 Karma

RobertEikel
Engager

This was much easier for me:

 

eval diff=mvmap(field1,if(isnull(mvfind(field2,field1)),field1,null))

 

 

pvarelab
Path Finder

Beware thet the second parameter for mvfind is a regex, so it should be limited by "^" and "$" if you want the best match.

0 Karma

Pamela
Engager

@RobertEikel 

Thanks for this small and easy one-liner that solved my issue. 

0 Karma

woodcock
Esteemed Legend

OK, I get it now, you need diffs between the numbers inside of a single multi-value field! try this:

| makeresults 
| eval mvfield="10 30 100 234 64 432 3 632 87"
| makemv mvfield
| eval mvdiff = tonumber(mvindex(mvfield, 0)) - tonumber(mvindex(mvfield, 1))
| foreach 1 2 3 4 5 6 7 8 9 10 11 12 
    [eval _t3Mp = tonumber(mvindex(mvfield, <<FIELD>>)) - tonumber(mvindex(mvfield, <<FIELD>> + 1))
  | eval mvdiff = mvappend(mvdiff, _t3Mp) ]
| fields - _t3Mp
| eval mvdiff = mvappend(mvdiff, "N/A")

reverse
Contributor

Awesome worked like a charm .. How can i project the differences on a chart now ?
Do i need to expand them first ?

0 Karma

woodcock
Esteemed Legend

I am not sure what you mean but maybe just ask a new question because this seems like a separate problem.

0 Karma

reverse
Contributor

Thanks @woodcock but not able to locate the appropriate solution. please guide

https://answers.splunk.com/answers/760695/generic-solution-to-same-column-value-difference.html

0 Karma
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