Logging: Descriptions of graphs
The FDSE search log contains information about each search performed. The log includes the time, the IP address of the visitor, the search terms used, the realms selected, the number of documents searched, and the number of documents found.
In the freeware mode, administrators can view the history of all searches. In the trial and registered shareware modes, administrators can view a history and also view tables that show searches grouped by keyword, time, visitor, etc.
Description of Each Graph
Entire Search String - contains the literal string that visitors enter, grouped by the frequency of that string. Although "foo bar" and "bar foo" return the same search results, they are treated separately in this graph. Commas in the search string are stripped, since the comma is the search log delimiter.
Individual Search Terms - shows the frequency of single words and phrases.
Visitor IP or Hostname - shows the IP address or hostname of the visitor performing the search.
Number of Documents Found - displays the integer total number of search results.
Starting Hit - the rank of the first document in this result set. For initial searches, this is always 1. If the visitor than clicks "Next" to view results 11-20, then starting hit will be 11. The distribution of starting hits is a measure of how many pages deep your visitors are traveling into their search results. This is not based on the first search result visited by the visitor; click-through information is not logged by FDSE.
Realm - the value of the "Realm" form variable. This is equal to whatever the user had selected; it is not related to which realm actually contained the search results. For many searches, the Realm variable will by "All". If the include-by-name realm syntax is used, then no information about the selected realm will be stored (see Advanced Search: Selecting Realms by name).
Day - the number of searches per day. Only days that have non-zero number of searches will be displayed. This is used to graph how traffic patterns change historically.
Hour of Day - the number of searches during each hour of the day. This is used to see how traffic patterns vary over the typical day.
Day of Week - the number of searches during each weekday. This is used to see how traffic patterns vary over the typical week. Compare with the "by Day" historical graph.
"Logging: Descriptions of graphs" https://www.xav.com/scripts/search/help/1104.html