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I´m sure this is simple, but I couldn´t find the right answer to my specific problem.

I have a data frame in R. The first column has a DateTime (POSIXct) format. The values in all the other columns have the format "factor". Since all of the values in these columns are numbers I want to convert them in to a numeric format. An additional problem is that since I´m from europe the numbers (factors) have "," as a decimal mark.

How do I convert these columns in to a numeric format?

FrozenHeaven
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    Why couldn't you find the answer? "factor to numeric R", "comma decimal to numeric R"? You already have all the correct terminology in your question. – David Arenburg Sep 24 '19 at 08:50
  • Thanks for the links! But since I´m very new to R I´m having problems applying the function to the data frame columns (2 to the last column). The result should still be a data frame. Do you have any hints? – FrozenHeaven Sep 24 '19 at 09:14

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