@iMarkus opened this issue on June 11th 2015

Report in Visitors Overview does not show the correct values. Reproducible at demo.piwik.org

http://demo.piwik.org/index.php?module=CoreHome&action=index&idSite=7&period=range&date=2015-01-01,2015-01-31#/module=VisitsSummary&action=index&idSite=7&period=range&date=2015-01-01,2015-01-31

Export Data as csv and importing in Excel gives the following: 35292 visits, 31551 unique visitors

When switching to period=month:

http://demo.piwik.org/index.php?module=CoreHome&action=index&idSite=7&period=month&date=2015-01-09#/module=VisitsSummary&action=index&idSite=7&period=month&date=2015-01-09

35292 visits, 27540 unique visitors

I also noticed differences in the calculation of users on our setup. The Evolution Graph seems to work correctly.

@mattab commented on June 12th 2015

Hi @iMarkus

When you get the count of Unique visitors per day in one month, and sum these, you will get more than the actual number of Unique Visitors in the month. Unique Visitors is the count of unique people across the whole month, because same person/visitor can visit multiple times. so it's working as expected

@iMarkus commented on June 12th 2015

Hi Matthieu,

understand. Thank you so much for the explanation.

This issue was closed on June 12th 2015
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