Finding non-numeric data in a data frame or vector

by

More Related Contents:

  1. Repeat each row of data.frame the number of times specified in a column
  2. Split column at delimiter in data frame [duplicate]
  3. How to convert a list consisting of vector of different lengths to a usable data frame in R?
  4. Select groups based on number of unique / distinct values
  5. Assign multiple columns using := in data.table, by group
  6. Filtering a data frame on a vector [duplicate]
  7. How to replace NA values in a table for selected columns
  8. Selecting multiple odd or even columns/rows for dataframe
  9. Sample n random rows per group in a dataframe
  10. Deleting reversed duplicates with R
  11. Select every nth row from dataframe
  12. Remove Rows From Data Frame where a Row matches a String
  13. duplicates in multiple columns
  14. R – add column that counts sequentially within groups but repeats for duplicates
  15. Extend contigency table with proportions (percentages)
  16. R self reference
  17. Change row order in a matrix/dataframe
  18. Convert summary to data.frame
  19. How can I prevent rbind() from geting really slow as dataframe grows larger?
  20. Calculate group mean while excluding current observation using dplyr
  21. Calculate row-wise proportions
  22. Merge or combine by rownames
  23. How to add new column to an dataframe (to the front not end)?
  24. DT[!(x == .)] and DT[x != .] treat NA in x inconsistently
  25. Return df with a columns values that occur more than once [duplicate]
  26. Row-wise sum of values grouped by columns with same name
  27. Convert a data frame to a data.table without copy
  28. How can I merge more than 2 dataframes in R by rownames?
  29. Identifying where value changes in R data.frame column
  30. What is the first column in R’s mtcars dataset?

Leave a Comment