Data Analysis Methods

Every metric on YiCai rests on one premise: lottery draws are random events; historical data can only help you understand distribution and cannot predict or guarantee future results. The methods below are only for reviewing and understanding past draws and do not constitute any participation advice.

Common Analysis Metrics

• Hot/Cold numbers: count how often each number appeared in past draws. Hot numbers appeared more recently or over the long run, cold numbers less so; past performance does not represent future results.
• Missing values: record how many draws since a number last appeared. Missing values only reflect historical gaps and do not change the probability of the next draw.
• Trends: arrange past draw numbers by draw to observe distribution changes. A trend chart is a visualisation of historical data, not an indication of where results are heading.
• Consecutive numbers: record the frequency and patterns of consecutive numbers in history.
• Zone distribution: split numbers into zones and observe how drawn numbers distribute across them.
• Odd/Even ratio: count the ratio of odd to even numbers among drawn numbers.

How to Interpret These Metrics Correctly

All the metrics above are statistical descriptions of draws that have already happened. They are suited to looking up, reviewing and understanding number distribution, not to judging or predicting the next draw. Any single draw may differ from the historical distribution.

All analysis is for data reference and entertainment only — please do not become addicted. Play responsibly and stay within what you can afford.