12 Answered Questions

[SOLVED] How to join (merge) data frames (inner, outer, left, right)?

5 Answered Questions

[SOLVED] Reshaping data.frame from wide to long format

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[SOLVED] How do I make a list of data frames?

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[SOLVED] How to sort a dataframe by multiple column(s)?

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[SOLVED] Dynamically select data frame columns using $ and a vector of column names

  • 2013-08-14 02:27:57
  • Samuel Song
  • 56397 View
  • 73 Score
  • 5 Answer
  • Tags:   r dataframe r-faq

8 Answered Questions

[SOLVED] Simultaneously merge multiple data.frames in a list

4 Answered Questions

8 Answered Questions

[SOLVED] How to deal with SettingWithCopyWarning in Pandas?

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[SOLVED] Quickly reading very large tables as dataframes in R

15 Answered Questions

[SOLVED] Split data frame string column into multiple columns

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[SOLVED] Reshape three column data frame to matrix ("long" to "wide" format)

10 Answered Questions

12 Answered Questions

[SOLVED] Drop factor levels in a subsetted data frame

3 Answered Questions

[SOLVED] Numbering rows within groups in a data frame

  • 2012-10-16 23:38:41
  • eli-k
  • 36573 View
  • 82 Score
  • 3 Answer
  • Tags:   r dataframe r-faq

15 Answered Questions

[SOLVED] Remove rows with NAs (missing values) in data.frame

5 Answered Questions

5 Answered Questions

[SOLVED] How to implement 'in' and 'not in' for Pandas dataframe

7 Answered Questions

[SOLVED] Filter dataframe rows if value in column is in a set list of values

3 Answered Questions

[SOLVED] Calculate mean per group (mean by group)

  • 2012-07-19 14:08:23
  • Jojo Ono
  • 44087 View
  • 34 Score
  • 3 Answer
  • Tags:   r dataframe r-faq

10 Answered Questions

[SOLVED] Count number of rows within each group

  • 2012-03-21 16:50:33
  • MikeTP
  • 130804 View
  • 71 Score
  • 10 Answer
  • Tags:   r dataframe r-faq

5 Answered Questions

[SOLVED] Filter data.frame rows by a logical condition

  • 2009-11-06 09:58:58
  • lhahne
  • 180015 View
  • 103 Score
  • 5 Answer
  • Tags:   r subset dataframe

16 Answered Questions

[SOLVED] Drop data frame columns by name

  • 2011-01-05 14:34:29
  • Btibert3
  • 965815 View
  • 648 Score
  • 16 Answer
  • Tags:   r dataframe r-faq

6 Answered Questions

[SOLVED] Split column at delimiter in data frame

  • 2011-08-15 18:37:19
  • Jeff Erickson
  • 142129 View
  • 73 Score
  • 6 Answer
  • Tags:   r dataframe

6 Answered Questions

[SOLVED] How to pivot Spark DataFrame?

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11 Answered Questions

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14 Answered Questions

[SOLVED] How do I replace NA values with zeros in an R dataframe?

  • 2011-11-17 03:45:44
  • Renato Dinhani
  • 695082 View
  • 499 Score
  • 14 Answer
  • Tags:   r dataframe na

3 Answered Questions

[SOLVED] Pass a data.frame column name to a function

  • 2010-04-14 23:04:18
  • kmm
  • 65792 View
  • 73 Score
  • 3 Answer
  • Tags:   r dataframe r-faq

25 Answered Questions

[SOLVED] Renaming columns in pandas