갈루아의 반서재

Data Preparation (19) - Prepare (Save Dataset)
Data Preparation (18) - Prepare (Numeric and Categoric Variables)
Data Preparation (17) - Prepare (Variables)
Data Preparation (10) - Clean (Identify Correlated Variables)
Data Preparation (16) - Clean (Ensure Target is Categoric)
Data Preparation (15) - Clean (Normalise Factors)
Data Preparation (14) - Clean (Omitting Observations)
Data Preparation (12) - Clean (Remove Missing Target)
Data Preparation (11) - Clean (Feature Selection)
Data Preparation (10) - Clean (Remove the Variables)
lower.tri / upper.tri
Correlation : cor()
Data Preparation (8) - Clean (Ignore MultiLevel, Constants)
Data Preparation (7) - Clean (Ignore IDs, Outputs, Missing)
Data Preparation (6) - Review (Variable Roles)
Data Preparation (5) - Review (Data Formats)
Data Preparation (4) - Review (Meta Data Cleansing)
Data Preparation (3) - Review (Observations, Structure, Summary)
Data Preparation (2) - Table Data Frame (tbl_df)
Data Preparation (1) - Load (Dataset, Generic Variables)
01. Rattle 설치 및 실행
16. 워드 클라우드 Word Clouds - 옵션
15. 워드 클라우드 Word Clouds
14. 워드 출현빈도 그래프로 나타내기 Plotting Word Frequencies
12. 등장빈도 및 단어간 상관도에 의거한 term 조회 Identifying Frequent Items and Associations
11. Removing Sparse Terms
10. 행렬로 전환하여 CSV 포맷으로 저장하기 Conversion to Matrix and Save to CSV
09. term의 출현빈도에 대한 분포 구하기 Distribution of Term Frequencies
08. Exploring the Document Term Matrix
07. Document-Term행렬 만들기 Creating a Document-Term Matrix