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→Example: City of Barrie, using years 2015 to 2017
The example will only consider rainstorm events, although the records also contain data for 'precipitation'. Precipitation is more useful if snowfall were also of interest to the analyst. (For example, if the analyst wished to calculate annual retention or runoff from a facility.)
The example will only consider rainstorm events, although the records also contain data for 'precipitation'. Precipitation is more useful if snowfall were also of interest to the analyst. (For example, if the analyst wished to calculate annual retention or runoff from a facility.)
This graph shows the data as a ''time series''.
This graph shows the data as a ''time series'':
[[File:Barrie time series.jpg|border|700 px]]
[[File:Barrie time series.jpg|border|700 px]]
The number of times each depth of storm occured can be counted and grouped like this:
[[File:Picture1.jpg|border|700 px]]
[[File:Picture1.jpg|border|700 px]]