Descriptive statistics is a kind of summary statistics, which is used to quantitatively describe or summarize the characteristics of information sets. From this definition, we can easily see that descriptive statistics contain two important features, descriptive and summative.
Generally speaking, we divide descriptive statistics into two categories: discrete trends and centralized trends.
Stata operation:
The first method is to enter the stata command: summarize.
After summarize, you can follow the name of a specific variable. If you don't follow the variable name, all variables will be descriptive analyzed by default. These two results are as follows:
(1) Enter the command: summarize to get descriptive statistical results of all variables.
(2) Enter the command: summarize price mpg rep78 headroom to get descriptive statistical results of some variables. As shown in the figure below.
The experience in data processing is that it is best to use stata's do file editor to record your work. Because few empirical studies can be completed at one time, the next time you continue to work. It is very important to be able to repeat the previous work. Sometimes because of some minor differences, you will find that you can't copy the original results.
At this time, if you have a do file that records your past work, it will take you from hell to heaven. Because you don't have to try to copy the work you have done over and over again. There is an isolated small button in the toolbar at the top of the stata window. When you put the mouse on it, "belt? Make a file? Editor? Where to? In front of ",click on it, there will be a file editor.