How to combine two levels of a variable in r
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Jan 18, 2018 · First, read both data files in R. Then, use the merge () function to join the two data sets based on a unique id variable that is common to both data sets: > merged.data <- merge (dataset1, dataset2, by="countryID") merged.data is an R object, which contains the two merged data sets.
Enter an equation along with the variable you wish to solve it for and click the Solve button. We can determine whether or not a given number is a solution of a given equation by substituting the number in place of the variable and determining the truth or falsity of the result.