Class: Sentiero::Analytics::ConversionAnalyzer

Inherits:
Analyzer
  • Object
show all
Defined in:
lib/sentiero/analytics/conversion_analyzer.rb

Overview

Conversion rate by acquisition dimension (entry page, referrer host, UTM) for one custom-event tag. A session counts as converting at most once, regardless of how many times/windows the tag fired.

Constant Summary collapse

TOP_ROWS = 
15
MIN_SESSIONS_FOR_RATE =

Below this many sessions a rate is too thin; rows flagged low_volume.

5
MAX_DIMENSION_KEYS =

A new key past the cap is dropped and sets was_truncated.

200
DIRECT = 
"(direct / none)"
UTM_PARAMS =

Matched case-insensitively.

%w[utm_source utm_medium utm_campaign].freeze

Constants included from Events

Events::CUSTOM, Events::INCREMENTAL, Events::META, Events::SOURCE_INPUT, Events::SOURCE_MOUSE_INTERACTION, Events::SOURCE_SCROLL

Instance Attribute Summary

Attributes inherited from Analyzer

#store

Instance Method Summary collapse

Methods inherited from Analyzer

#initialize

Methods included from EntryAttribution

#earlier?, #first_meta_href, #same_origin?, #update_entry_candidate

Methods included from Bounded

#bounded_fetch, #bounded_increment

Methods included from Stats

#mean, #offset_ms, #percentile, #top_counts

Constructor Details

This class inherits a constructor from Sentiero::Analytics::Analyzer

Instance Method Details

#analyze(tag = nil, limit: nil, since: nil, until_time: nil) ⇒ Object

No tag selected → empty facets, but tag vocabulary is still collected.



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# File 'lib/sentiero/analytics/conversion_analyzer.rb', line 28

def analyze(tag = nil, limit: nil, since: nil, until_time: nil)
  selected = FunnelAnalyzer.usable_steps([tag].compact).first

  tags = {}
  sessions = {}
  @truncated = false

  _scanned, hit_cap = scan_sessions(limit: limit, since: since, until_time: until_time) do |summary, window_id, events|
    session_id = summary[:session_id]
    state = sessions[session_id] ||= new_state(summary, window_id)

    update_entry_candidate(state, events)
    collect_vocabulary(tags, events)
    record_conversion(state, selected, window_id, events) if selected
  end

  facets = selected ? build_facets(sessions) : empty_facets

  {
    tags: tags.keys.sort,
    selected_tag: selected,
    entry_pages: facets[:entry_pages],
    referrers: facets[:referrers],
    utm: facets[:utm],
    was_truncated: @truncated || hit_cap
  }
end