Convert Categorical Variable to Numeric in R
you’ll learn how to convert categorical values into quantitative values to make statistical modeling easier.
Most statistical models can’t take in strings as inputs. We’ll go through the conversion based on the airline data set that we reviewed in the previous post.
The “Reporting Airline” feature in the Airline dataset is a categorical variable with nine character types: “AA”, “AS”, “B6”, “DL”, “HP”, “PA (1)”, “TW”, “UA” or “VX”.
You’ll need to convert these variables into a numeric format for further investigation.
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Data
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