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")

이 연습은 강의의 일부입니다

Text Mining with Bag-of-Words in R

강의 보기

연습 안내

Apply the following functions to the text object from the previous exercise:

bracketX()
replace_number()
replace_abbreviation()
replace_contraction()
replace_symbol()

실습형 인터랙티브 연습

이 예제를 이 샘플 코드를 완성하여 풀어보세요.

## text is still loaded in your workspace

# Remove text within brackets
___

# Replace numbers with words
___

# Replace abbreviations
___

# Replace contractions
___

# Replace symbols with words
___

코드 편집 및 실행