Variable labels

 

Variable labels: describe your variables.

Variable labels document your data and make it more user-friendly.

Examples of the label variable command are shown below in a do-file.


use "q:\utilities\statatut\examfac2.dta", clear

keep facid q102_1-q102_5

/** show variable labels **/
describe

/** remove variable labels **/

label variable q102_1 ""

label variable q102_2 ""

label variable q102_3 ""

label variable q102_4 ""

label variable q102_5 ""

describe

/** re-create variable labels */
label var q102_1 "Staff member 1 job title"

label var q102_2 "Staff member 2 job title"

label var q102_3 "Staff member 3 job title"

label var q102_4 "Staff member 4 job title"

label var q102_5 "Staff member 5 job title"

describe


Questions:

1. How many characters long can a variable label be? Answer.


2. Can more than one variable be assigned a variable label in one label command? Answer.

 


Answers:

1. The maximum length for a variable label is 80 characters. See help limits for this and almost every other limit in Stata.

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2. No. Only one variable can be processed in a label variable command. However, you can use a command like foreach or  forvalues to create labels for many similar variables in a single loop, which saves a lot of typing.

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