Import the three datasets provided in the .txt format. They provide data on states' GDP and population sizes and on their political regime (liberal democracy). Merge them by the state key. Have you managed to import them? Have you managed to merge them?

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I only managed to import the data, but could not merge them or clean the missing-values observations.

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I managed to import the data into R and merge them, I have one data frame with all three variables for the states for which all the data were  available.

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I did not manage to import the data into R.

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Import the three datasets provided in the .txt format. They provide data on stat...

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