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Update 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
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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.
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Chains are searched for without overlapping. In other words, the next chain can start only after the end of the previous one.
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## windowFunnel(window)(timestamp, cond1, cond2, cond3, ....)
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## windowFunnel(window)(timestamp, cond1, cond2, cond3, ...)
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Window funnel matching for event chains, calculates the max event level in a sliding window.
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@ -62,7 +62,7 @@ Window funnel matching for event chains, calculates the max event level in a sli
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Example:
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Consider you are doing a website analytics, intend to find out the user counts clicked login button( event = 1001 ), then the user counts followed by searched the phones( event = 1003 and product = 'phone' ) , then the user counts followed by made an order ( event = 1009 ). And all event chains must be in a 3600 seconds sliding window.
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Consider you are doing a website analytics, intend to find out the user counts clicked login button (event = 1001), then the user counts followed by searched the phones( event = 1003 and product = 'phone'), then the user counts followed by made an order (event = 1009). And all event chains must be in a 3600 seconds sliding window.
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This could be easily calculate by `windowFunnel`
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@ -83,7 +83,7 @@ GROUP BY level
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ORDER BY level
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```
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Simply, the level value could only be 0,1,2,3, it means the maxium event action stage that one user could reach.
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Simply, the level value could only be 0, 1, 2, 3, it means the maxium event action stage that one user could reach.
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## uniqUpTo(N)(x)
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