Fastest way to find second (third…) highest/lowest value in vector or column

Use the partial argument of sort(). For the second highest value:

n <- length(x)
sort(x,partial=n-1)[n-1]

Related Contents:

  1. Split a vector into chunks
  2. Counting the number of elements with the values of x in a vector
  3. How to find common elements from multiple vectors?
  4. How to convert a list consisting of vector of different lengths to a usable data frame in R?
  5. How to cbind or rbind different lengths vectors without repeating the elements of the shorter vectors?
  6. R memory management / cannot allocate vector of size n Mb
  7. Test if a vector contains a given element
  8. Create grouping variable for consecutive sequences and split vector
  9. How to tell what is in one vector and not another?
  10. How to merge 2 vectors alternating indexes?
  11. Multiply rows of matrix by vector?
  12. Alternate, interweave or interlace two vectors
  13. Finding All Positions for Multiple Elements in a Vector
  14. How to index a vector sequence within a vector sequence
  15. else if(){} VS ifelse()
  16. Get indexes of a vector of numbers in another vector
  17. Convert data.frame column to a vector?
  18. Select every other element from a vector
  19. How to divide each row of a matrix by elements of a vector in R
  20. Count values separated by a comma in a character string
  21. Convert Named Character Vector to data.frame
  22. Reduce PDF file size of plots by filtering hidden objects
  23. How do keep only unique words within each string in a vector
  24. How to access the last value in a vector?
  25. Extract every nth element of a vector
  26. Converting two columns of a data frame to a named vector
  27. Append value to empty vector in R?
  28. List distinct values in a vector in R
  29. How do I map a vector of values to another vector with my own custom map in R [duplicate]
  30. How do I extract just the number from a named number (without the name)?
  31. Split delimited single value character vector
  32. Test for equality among all elements of a single numeric vector
  33. R split numeric vector at position
  34. Extract a column from a data.table as a vector, by position
  35. Find start and end positions/indices of runs/consecutive values
  36. Concatenate rows of a data frame
  37. Convert a dataframe to a vector (by rows)
  38. Unlist a data frame by rows, not columns
  39. How to reverse order a vector?
  40. “for” loop only adds the final ggplot layer
  41. Pass a vector of variables into lm() formula
  42. How to subtract/add days from/to a date?
  43. How to add code folding to output chunks in rmarkdown html documents
  44. ggplot combining two plots from different data.frames
  45. How to display only integer values on an axis using ggplot2
  46. R self reference
  47. if – else if – else statement and brackets
  48. How can I force a line break in rmarkdown’s title?
  49. Add a column with count of NAs and Mean
  50. Moving color key in R heatmap.2 (function of gplots package)

Leave a Comment