How to decentralize if the crossing and multiplication items are

1. According to Hou Jietai: the so-called centralization refers to subtracting the mean value of a variable from its expected value. For sample data, each observation value of a variable is subtracted from the sample average value of the variable, and the transformed variable is centralized
for your question, subtract the mean from each measurement.

2. Coin an's decentralization process is relatively fast. The development of binance DEX and coin an's intelligent chain has been ahead of others. I'm looking forward to the next step of coin an's decentralization layout. After all, coin an can give me some surprises every time.

3. The cross term reflects whether the two variables have a significant impact on the explained variable. When setting, we should try to avoid the problem of multicollinearity. If we know that there is multicollinearity and force to set the cross term, we may not be able to estimate it and it is meaningless