This option allows for the optional restriction of click data to a set number of weeks into the past.
Setting this option does not replace the
num_archived_logs_to_use option, it works in concert with
it. That is, the
num_archived_logs_to_use option will determine the set of logs to examine, and the
week_limit option will possibly exclude old entries from these logs.
This value can be set to:
a number, if click data should be restricted.
nothing, if no restriction is desired.
To set unlimited weeks set this to empty