[R] SPSS command "match files" for merging one-to-many (hierarchical) equivalent in R?

[Kristina Loderer]

Dear R community,

to combine data sets of hierarchical, nested nature (i.e., data sets
linked by, for example, the variable "study ID" and then also by
"outcome_variable_1" and "outcome_variable_2") I can use the match files
command in SPSS. What is the equivalent command / function in R? Is it
the merge function, or the match function? The more I read, the more
confused I become..

Thank your for help in advance!

Kristina Loderer

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Kristina Loderer
Ludwig-Maximilians-Universität München
Department Psychologie
Leopoldstr. 13
D-80802 München

Telefon: +49 (89) 2180-6047
Email: Kristina.Loderer at psy.lmu.de

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