Cleaning with qdap
The qdap package offers other text cleaning functions. Each is useful in its own way and is particularly powerful when combined with the others.
bracketX(): Remove all text within brackets (e.g. "It's (so) cool" becomes "It's cool")replace_number(): Replace numbers with their word equivalents (e.g. "2" becomes "two")replace_abbreviation(): Replace abbreviations with their full text equivalents (e.g. "Sr" becomes "Senior")replace_contraction(): Convert contractions back to their base words (e.g. "shouldn't" becomes "should not")replace_symbol()Replace common symbols with their word equivalents (e.g. "$" becomes "dollar")
Cet exercice fait partie du cours
Text Mining with Bag-of-Words in R
Instructions
Apply the following functions to the text object from the previous exercise:
bracketX()replace_number()replace_abbreviation()replace_contraction()replace_symbol()
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
## text is still loaded in your workspace
# Remove text within brackets
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# Replace numbers with words
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# Replace abbreviations
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# Replace contractions
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# Replace symbols with words
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