Скачать или смотреть Convert String Variables to Numeric Variables |Data Management using Stata |Stata Tutorials Topic 30

Stata Tutorials Topic 30: Convert String Variables to Numeric Variables | Summary Statistics and Data Management Using Stata

Hi, I am Bob. Welcome to the Stata course about summary statistics and regression analysis. Today, we will learn how to convert string variables to numeric variables. A string is any character that is not a number. String data are common, and when we import data from other formats, we often encounter string variables. We will use the "destring" and "tostring" commands, which convert string variables to numeric variables and back. We will also talk about "encode" and "decode" commands.

Please download the BOB.dta dataset:
https://drive.google.com/file/d/1dUBB...

The Stata commands in this video:
*load the data from website
webuse destring1.dta, clear

browse

summarize

describe

*convert string variables to numeric variables
destring num, generate(num2)

browse

summarize num2

describe

destring income, replace

browse

describe

summarize income

generate code2=real(code)

summarize

tostring income, replace

describe

*use the course dataset
use "BOB.dta", clear

describe

list health_report in 1/10

*create categorical variables from string variables
encode health_report, generate(health_report2)

tabulate health_report2

tabulate health_report2, nolabel

decode health_report2, generate(health_report3)

describe health_report health_report3

list health_report health_report3 in 1/10


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