statistic using the target was not working and you will see next okay so the data set didn't include any time stamp or session information but we noticed by doing some analysis that it was coronary ordered so what we need is we approximate sessions of the users by using some little trick just look at the indexes shifted by one try to check the difference if the values are small this means that those samples are in the same session if the value is high this means that this happening in some other sessions this is the first trick that we