Error in generating boxplot two variable data frame: adding class “factor” to an invalid object

Your data type needs to be integer for your intent

leptine.means$Group.1 <-  as.integer(leptine.means$Group.1)

boxplot(Group.1~interaction(Leptine1, Leptine2), data=leptine.means, col=2:3)

Output

Related Posts:

  1. Plot multiple lines in one graph
  2. Replace a value in a data frame based on a conditional (`if`) statement
  3. How to read in .HTM into R as a data frame?
  4. How to randomize ggplot factor color scheme, keeping same default distances on color wheel?
  5. Count number of occurences for each unique value
  6. Find duplicate values in R
  7. Transpose a data frame
  8. Multiple If Statements in R
  9. ggplot geom_text font size control
  10. What’s the difference between lapply and do.call?
  11. ggplot2, change title size
  12. Initial value in ‘vmmin’ is not finite even when changing the starting value
  13. Insert picture/table in R Markdown
  14. Test if a vector contains a given element
  15. How to remove outliers from a dataset
  16. Insert a blank column in dataframe
  17. “length of ‘dimnames’ [2] not equal to array extent” on one of two very similar sets
  18. Mean per group in a data.frame
  19. How to install RHadoop packages (Rmr, Rhdfs, Rhbase)?
  20. Error in dev.off() : cannot shut down device 1 (the null device)
  21. standard deviation on dataframe does not work
  22. Warning message: In `…` : invalid factor level, NA generated
  23. What is the difference between = and ==?
  24. Merge r brings error “‘by’ must specify uniquely valid columns”
  25. promise already under evaluation: recursive default argument reference or earlier problems?
  26. What does the error “arguments imply differing number of rows: x, y” mean?
  27. Aggregate multiple columns at once
  28. Error in model.frame.default: variable lengths differ
  29. Non-numeric argument to mathematical function
  30. Position-dodge warning with ggplot boxplot?
  31. Plot two graphs in same plot in R
  32. R – Concatenate two dataframes?
  33. KNN in R: ‘train and class have different lengths’?
  34. Error in rep(1, n.ahead) : invalid ‘times’ argument in R
  35. Producing subscripts in R markdown
  36. ggplot geom_text font size control
  37. R multiple conditions in if statement
  38. How do you use “<<-" (scoping assignment) in R?
  39. Remove quotes from a character vector in R
  40. Is it possible to have a multi-line comments in R?
  41. R – error “variable lengths differ”
  42. Simple manual RMarkdown tables that look good in HTML, PDF and DOCX
  43. Select rows from a data frame based on values in a vector
  44. dplyr: “Error in n(): function should not be called directly”
  45. how to increase the limit for max.print in R
  46. In R formulas, why do I have to use the I() function on power terms, like y ~ I(x^3)
  47. Creating box plot on exercise
  48. Error in eval(expr, envir, enclos) : object not found
  49. Filter data.frame rows by a logical condition
  50. Replace NA with 0 in a data frame column [duplicate]
  51. How to plot 3D scatter diagram using ggplot?
  52. How do I convert a factor into date format?
  53. Error while creating heatmaps – NA/NaN/Inf in foreign function call (arg 11)
  54. Write lines of text to a file in R
  55. How to solve ‘protection stack overflow’ issue in R Studio
  56. Conditional mean statement
  57. Warning in GLM analysis
  58. What does ‘length of ‘dimnames’ [1] not equal to array extent’ mean?
  59. How do I flip rows and columns in R
  60. Remove NA values from a vector
  61. How to catch integer(0)?
  62. Print string and variable contents on the same line in R
  63. Does R have a wildcard expression (such as an asterisk (*))?
  64. r random forest error – type of predictors in new data do not match
  65. env=baseenv() in R
  66. Simple for loop in R producing “replacement has length zero” in R
  67. Removing punctuations from text using R
  68. How to find out which package version is loaded in R?
  69. How to solve it. error:Error in data[[rowvar]] : attempt to select less than one element
  70. How to melt and cast dataframes using dplyr?
  71. What does Continuous x aesthetic — did you forget aes(group=…) mean?
  72. How to unload a package without restarting R
  73. Gradient of n colors ranging from color 1 and color 2
  74. How to prevent scientific notation in R?
  75. How to declare a vector of zeros in R
  76. Launching R help: Error in file(out, “wt”) : cannot open the connection
  77. Plotting legend outside plot in R
  78. Reset par to the default values at startup
  79. R avoiding “restarting interrupted promise evaluation” warning
  80. How to increase the font size of ggtitle in ggplot2
  81. Error in G * t(hat) : non-conformable arrays
  82. Error: isTRUE(gpclibPermitStatus()) is not TRUE
  83. How to counter the ‘non-numeric matrix extent’ error in R?
  84. What does is.na() applied to non-(list or vector) of type ‘NULL’ mean?
  85. error r: invalid subscript type “closure” in a simple regression
  86. Merge two rows in data.frame
  87. r function unzip error 1 in extracting from zip file
  88. Get the list of installed packages by user in R
  89. How to access the last value in a vector?
  90. Mask output of `The following objects are masked from….:` after calling attach() function
  91. How To Create Vector of Vector In R
  92. Construct a manual legend for a complicated plot
  93. Code to clear all plots in RStudio
  94. Error: x must be atomic for ‘sort.list’
  95. Installing R on Android
  96. Transposing in dplyr
  97. Does the c command create a row vector or a column vector by default in R
  98. Converting from a character to a numeric data frame
  99. How to create lag variables
  100. When trying to replace values, “missing values are not allowed in subscripted assignments of data frames”

Leave a Comment