How to deal with decentralization in Stata

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. Only iron pick can dig ore and water in the mine cave. It's better to bring some wood and a fire into the mine cave. You can only knock round stones by the river to have a small chance to proce iron ore. The Iron pick is not useful for iron ore. It's the same to decide what equipment you wear. The iron spear and crossbow must be available, and then according to the cold and hot conditions of the mine cave you want to go to at that time

3. Short panel processing
panel data refers to both cross-section data and time series data, so it has the advantage that cross-section data does not have. When Using Stata to estimate panel data, xtreg command is generally selected for fitting. This section mainly discusses the Stata implementation of short panel, that is, the data whose time dimension t is smaller than the section number n. In that case, because t is small and each indivial has less information, it is impossible to discuss whether the disturbance term has autocorrelation. We generally assume that it is independent and identically distributed
dimension determination of panel data

before model estimation of panel data, dimension determination of panel data should be carried out. Because panel data has both cross-section data and time series, and Stata can't automatically identify them, Stata must know which part is cross-section data and which part is time series
the basic commands for setting panel data dimensions are:
xtset panel VaR, timvar [, tsoptions]
where panel var represents section data variables and timvar represents time series variables
select a panel data for dimension setting:
xtset fcode year

4. OEM proction, that is, OEM proction, also known as fixed brand proction, commonly known as "OEM", is the proct that Suning asked others to work on behalf of, but the manufacturer is looking for outside

OEM procts are tailor-made for brand manufacturers. After proction, only the brand name can be used, and it is absolutely not allowed to proce under the name of the manufacturer. OEM procts are characterized by technology, capital, market and proction
the basic meaning of OEM (origin entered manufacturing) is the cooperation of OEM proction, commonly known as "OEM". Brand procers do not directly proce procts, but use their own "key core technology" to design and develop new procts and control sales channels. However, the proction capacity is limited, and even there is no proction line or factory building. In order to increase proction and sales, rece the risk of new proction line, and even win market time, Through the way of contract ordering, other similar procts manufacturers are entrusted to proce, the ordered procts are bought out at a low price, and their own brand trademarks are pasted directly. This kind of cooperation mode of entrusting others to proce is called OEM, and the manufacturer who undertakes the processing task is called OEM manufacturer, whose procts are OEM procts.

5. It's also very comprehensive here.
some famous brands of electrical appliances have it.
of course, there are also maternal and infant clothing department stores.

6. Just patch it. Microsoft updates have been pushed long ago. If your computer is always on, it's OK<

do not open websites and files of unknown origin,

patch the system, especially the patch released by Microsoft in March this year,
disable port 445.

7. There's no way to get it back.