# Event comparison
Event comparison allows us to analyze how a selected event performs against a control event. You can select any metric as a basis of the comparison.
Event comparsion can be accessed inside the Event editor (opens new window) by selecting any created event.
# How to understand the data
Users - the count of users who has triggered the event
Metric output - (conversion rate in the example) measured performance during the selected timeframe.
Daily/Weekly/Monthly - select how the time frame is displayed in the graph.
Date selection - choose the timeframe of the data to be displayed. You can also select two timeframes to compare event analytics during different periods.
Compare event - how the selected event performs in comparison to another (control) event
Comapre Metric - select a metric to compare the event against.
# Comparison graph
The yellow line in the graph shows how the metric performs in terms of the compared event during the 1st comparison date range.
The green line in the graph displays the metric performance in terms of the compared event during the 2nd comparison date range.
The bars in the graph display the total number of event completion count (daily/weekly/monthly).
Red/green arrows represent the change (delta) of the user count and metric performance during the selected time period.
Change displays the difference between the metric measurements on a selected date (appears after clicking on the line).