Question

Suppose you want to merge two datasets in Stata. The variable for matching is yob, which...

Suppose you want to merge two datasets in Stata. The variable for matching is yob, which stands for year of birth. The dataset in memory is population census data from Canada. That is, the dataset has information on every single resident of Canada. The dataset that you want to merge in has data on the level of GDP per capita in the year of birth. Which of the following commands should you use?

a) merge 1:1 yob using “GDPpercapita.dta”

b) merge m:1 yob using “GDPpercapita.dta”

c) merge 1:m yob using “GDPpercapita.dta”

d) None of these commands will work.

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Answer #1

Answerr:

Option :2 merge m:1 yob using “GDPpercapita.dta” : Correct

The dataset we want to use merge has data on the level of the GDP per capita in the year of birth .The command for the same will be used is MERGE M:1 Yob using 'GDPpercapita.dta". This is the command which is used for this function of data .

Option :1 merge 1:1 yob using “GDPpercapita.dta” : Incorrect

This is incorrect as this is not the command which is used for the given function

Option :3 merge 1:m yob using “GDPpercapita.dta” : Incorrect

This is incorrect as this is not the command which is used for the given function

Option :4 None of these :Incorrect

As command of 2 option used for this function hence this one is incorrect .

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