I'm not entirely sure I understand what you're asking, but are you looking to basically compare the number of weekend logs to the number of weekday logs? If so, you can create a calculated field like this:
// Is this a weekday or a weekend.
IF DATENAME('weekday',[Date])='Saturday' or DATENAME('weekday',[Date])='Sunday' THEN
Then you can build your view like this using Week Part and Number of Records.
Thanks, that is what i was looking for