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I have a survey data frame with individual-level observations. I want to merge this data frame with another data frame with country-level variables (one row per country-year). This latter should repeat the rows according to the number of rows in the individual-level data frame. I have been tried this using the rep() function but it didn't work. I don't know if I was clear, but I would thank you so much if anyone can help.

Ben Bolker
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Lucas de Miranda
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    Welcome to SO! Please read [How to make a great R reproducible example](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example) – markus Dec 28 '19 at 17:57
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    `?merge`, in base R, or one of the join functions in the tidyverse (e.g. `?dplyr::full_join`, is probably what you want. If you provide a reproducible example someone can write an answer with a little more detail. – Ben Bolker Dec 28 '19 at 18:00

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