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小学初中大学电子教材大全
1 - 2 - Raw and Processed Data (7-07).srt
1 - 3 - Components of Tidy Data (9-25).srt
1 - 4 - Downloading Files (7-09).srt
1 - 5 - Reading Local Files (4-55).srt
1 - 6 - Reading Excel Files (3-55).srt
1 - 7 - Reading XML (12-39).srt
1 - 8 - Reading JSON (5-03).srt
1 - 9 - The data.table Package (11-18).srt
2 - 1 - Reading from MySQL (14-44).srt
2 - 2 - Reading from HDF5 (6-45).srt
2 - 3 - Reading from The Web (6-47).srt
2 - 4 - Reading From APIs (7-57).srt
2 - 5 - Reading From Other Sources (4-44).srt
3 - 1 - Subsetting and Sorting (6-51).srt
3 - 2 - Summarizing Data (11-37).srt
3 - 3 - Creating New Variables (10-32).srt
3 - 4 - Reshaping Data (9-13).srt
3 - 7 - Merging Data (6-19).srt
4 - 1 - Editing Text Variables (10-46).srt
4 - 2 - Regular Expressions I (5-16).srt
4 - 3 - Regular Expressions II (8-00).srt
4 - 4 - Working with Dates (6-02).srt
4 - 5 - Data Resources (3-33).srt
系统使用教程