R : Select rows from a data frame based on values in a vector

R : Select rows from a data frame based on values in a vector

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How do I select rows from a DataFrame based on column values?Подробнее

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Get Sum of Data Frame Column Values in R (2 Examples) | Calculate Variable Sums | sum() & colSums()Подробнее

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R Select Data Frame Column Using Character Vector (Example) | $-Operator vs. [,] | Extract VariableПодробнее

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