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Update parametric_functions.md

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docs/en/agg_functions/parametric_functions.md
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@ -50,7 +50,7 @@ Events that occur during the same second can be put in the chain in any order. T
Works the same way as the sequenceMatch function, but instead of returning whether there is an event chain, it returns UInt64 with the number of event chains found. Works the same way as the sequenceMatch function, but instead of returning whether there is an event chain, it returns UInt64 with the number of event chains found.
Chains are searched for without overlapping. In other words, the next chain can start only after the end of the previous one. Chains are searched for without overlapping. In other words, the next chain can start only after the end of the previous one.
## windowFunnel(window)(timestamp, cond1, cond2, cond3, ....) ## windowFunnel(window)(timestamp, cond1, cond2, cond3, ...)
Window funnel matching for event chains, calculates the max event level in a sliding window. Window funnel matching for event chains, calculates the max event level in a sliding window.