How to convert the date of birth to age based on the data of China Comprehensive Social Survey 2010 as an example:

In this issue, the editor will bring you about how the R language uses the data of China Comprehensive Social Survey 2010 as an example to convert the date of birth to age: the article is rich in content and analyzed and described from a professional point of view. I hope you can get something after reading this article.

data

Take the 2010 data of China Comprehensive Social Survey (cgss) as an example, the data are in the following forms:

For example, the data shown in the figure above, there are many survey items (there are hundreds of options), we need to select the required variables for research, and some of the data are character-based (such as city, whether or not, men and women), and there are missing values, and so on. all these need to be sorted out and cleaned to get structural data for further analysis.

two

Read the file and make preliminary processing

1. File "cgss2010" data

Enter the following code in R to set the work path first:

Setwd ("Dazuza R regression") getwd ()

Then read the file:

Data