GA inside the built-in custom reminders sometimes there exists the problem of latency, which results in a greatly reduced role of this function, the following describes how to resolve this issue through Google Sheet.
Use GA intelligent event principle is over a period of time 90% confidence interval as a reasonable range, over on early warning, referring to this principle, screening the main indicators to monitor the general look at the number of sessions, number of users, bounce rate, average length of a session, a new session proportion, views, Referral, the specific configuration shown in FIG Google Sheet (see detailed usage application Chapter 5 in the second section of Google Sheet) 2-3:
Figure 2-3 Google Sheet Configuration
After running out of the operating data shown in Figure 2-4:
FIG. 2-4 Google Sheet running out data
1. Principle confidence interval method:
Over the past 30 days is calculated mean and standard deviation, and the lower range of [-1.96 * average standard deviation, mean + 1.96 * standard deviation], where 1.96 is the threshold can be adjusted, and to last 1 day and with reasonable to do if the judge, over the range of 1 to reasonable to 0, so that you can see intuitively whether there is an abnormality, shown in Figure 2-5.
FIG. 2-5 Google Sheet Results
You can see the scope of a reasonable range for the number of sessions is too large, and this has led to the vast majority are reasonable, such cases occur primarily data range is too large, even the lower limit of negative values may appear, this is obviously not reasonable, so make adjustments to the algorithm logic abnormal use quantile method,
2. quantile method:
The principle is to calculate the 25% and 75% quantile, and upper and lower limits respectively positioned [-1.5 * 25% percentile (75% -25% quantile quantile), 75% quantile +1.5 * (75% -25% quantile quantile)], where the threshold is 1.5, adjusted according to the actual situation of business, so that the calculated result shown in Figure 2-6:
The method of FIG. 2-6 quantile calculations
We can see quantile method calculated the reasonable range is more reasonable.
This will run every day through Google Sheet way to view abnormal, and directly through the 0 and 1 will be able to quickly determine whether there is abnormal various business indicators.