problem with merge m:1

[John Mayer]

I tried to merge two data sets with unique variables called "Name" and "lan". Data set 1 consists of the two variables called "Name", "Lan" and "komm" and data set 2 consists of the variables called "Name", "lan", "harad", NAMN", "LAN", "parid", "LMn1", "SNID_4" and "city".

merge m:1 Name lan using "XXX"

This is the result:

 
Name
lan
komm
harad
NAMN
LAN
parid
LMn1
SNID_4
city
_merge

abild
13
1







matched (3)

adelöv
6
1







matched (3)

agnetorp
16
1







matched (3)

agunnaryd
7
1







matched (3)

akebäck
9
1







matched (3)

The problem that occurs is that the merge takes place but the values were not adopted.

Does anyone know how to fix this problem?

[Rich Goldstein]

are you sure that your first data set has only the two variables? if yes, are you sure that your second data actually has non-missing values? my guess is that the variables already exist in the first data set and you need the "update" option; if this is not the issue, please use -dataex- (see the FAQ) to provide examples of each of your two data sets