Getting data from the API delivers different data than from the UI

[anonymous-matomo-user]

I searched the demo Piwik UI for visits today (2011 Feb 21):

http://demo.piwik.org/index.php?module=CoreHome&action=index&idSite=1&period=day&date=2011-02-21#module=VisitTime&action=index&idSite=1&period=day&date=2011-02-21

This is the same query using the JSON API:

http://demo.piwik.org/index.php?module=API&method=VisitTime.getVisitInformationPerServerTime&idSite=1&period=day&date=2011-02-21&format=JSON&token_auth=anonymous

Look at the graph (by server time). The data is different for almost all of the hours that are reported. For example, hour 12:

UI: 323 visits
API: 304 visits

These should be exact.

[robocoder]

You're looking at the wrong numbers.

At the dashboard widget, it says "Visits" at the top. This corresponds to nb_visits.

If you look at the API output, you'll see both the number of unique visitors (304) and visits (323).

...
{"label":"12h","nb_uniq_visitors":304,"nb_visits":323,

[robocoder]

See #1820 for proposed enhancement.

[anonymous-matomo-user]

Thanks!