Filter Back-testing

Back-testing allows verifying filter performance on previous winning numbers draws. This feature is available in most filter windows by clicking Back-test button. The results displayed in this window always apply to the current settings of filter parameters.

Controls Description

Example [Expert Lotto 6/49]: Switch to demo lottery Expert Lotto 6/49 and choose filter Odd/Even, set filter's condition to 3 odd and 3 even numbers.

Clicking Back-test button opens the following window:

In this window you can choose the date range of winning numbers to back-test (all 1st Sun draws are selected in the figure above). If you change this choice click on the button Refresh. The table on the right shows the selected past draws with information Passed / Failed. You can highlight individual rows with your mouse while pressing Shift (continuous selection) or Ctrl (scattered selection) keys . Checking option Show matching tickets only will hide all tickets that did not pass the filter. If some tickets are highlighted button Number Occurrences will become active. Click this button to see a table with frequencies of occurrence of individual numbers in the highlighted rows.

This function provides information on how the filter performed in the lottery history and which numbers are the most frequent numbers.

This feature is available only for filters where it makes sense. The following filters do not support back-testing:

In case of group and compound filters the back test button is enabled only when all their sub-filters support this features.