“Error: Continuous value supplied to discrete scale” in default data set example mtcars and ggplot2

Yeah, I was able to fix it by converting the color and shape aesthetics to factors:

ggplot(mtcars, aes(x=wt, y=mpg, color=as.factor(cyl), shape=as.factor(cyl))) +
  geom_point() + 
  geom_smooth(method=lm, se=FALSE, fullrange=TRUE)+
  scale_shape_manual(values=c(3, 16, 17))+ 
  scale_color_manual(values=c('#999999','#E69F00', '#56B4E9'))+
  theme(legend.position="top")

Related Posts:

  1. R Hex to RGB converter
  2. Error in file(file, “rt”) : cannot open the connection [duplicate]
  3. Error in : object of type ‘closure’ is not subsettable
  4. Could not find function “%<>%” with dplyr loaded
  5. Interpreting “condition has length > 1” warning from `if` function
  6. How to coerce a list object to type ‘double’
  7. R Error in x$ed : $ operator is invalid for atomic vectors
  8. $ operator is invalid for atomic vectors for dataframe R
  9. Plotting with ggplot2: “Error: Discrete value supplied to continuous scale” on categorical y-axis
  10. ggplot2 error : Discrete value supplied to continuous scale
  11. ggplot2 line chart gives “geom_path: Each group consist of only one observation. Do you need to adjust the group aesthetic?”
  12. ggplot2 line chart gives “geom_path: Each group consist of only one observation. Do you need to adjust the group aesthetic?”
  13. How to open CSV file in R when R says “no such file or directory”?
  14. Error: could not find function “%>%”
  15. R programming: How do I get Euler’s number?
  16. ‘x’ and ‘y’ lengths differ ERROR when plotting
  17. What are the “standard unambiguous date” formats for string-to-date conversion in R?
  18. ‘x’ and ‘y’ lengths differ ERROR when plotting
  19. What are the “standard unambiguous date” formats for string-to-date conversion in R?
  20. Difference between paste() and paste0()
  21. Remove duplicated rows
  22. Error in ggplot.data.frame : Mapping should be created with aes or aes_string
  23. Error in Confusion Matrix : the data and reference factors must have the same number of levels
  24. Error in plot.window(…) : need finite ‘xlim’ values
  25. Error in colMeans(x, na.rm = TRUE) : ‘x’ must be numeric, What should I do in this situation?
  26. Editing legend (text) labels in ggplot
  27. case_when in mutate pipe
  28. Principal Components Analysis:Error in colMeans(x, na.rm = TRUE) : ‘x’ must be numeric
  29. Error in lm.fit(x,y,offset = offset, singular.ok,…) 0 non-NA cases with boxcox formula
  30. Extract year from date
  31. Persistent invalid graphics state error when using ggplot2
  32. incorrect number of dimensions and incorrect number of subscripts in array
  33. What does %*% mean in R [duplicate]
  34. Why am I getting “algorithm did not converge” and “fitted prob numerically 0 or 1” warnings with glm?
  35. How to debug “contrasts can be applied only to factors with 2 or more levels” error?
  36. R t-test Grouping factor must have exactly 2 levels error
  37. What does c do in R?
  38. Opposite of %in%: exclude rows with values specified in a vector
  39. Understanding the order() function
  40. Using Caret Package but Getting Error in library(e1071)
  41. Subscript out of bounds – general definition and solution?
  42. Error in lis[[i]] : attempt to select less than one element
  43. How to compute weighted mean in R?
  44. Error: unexpected symbol/input/string constant/numeric constant/SPECIAL in my code
  45. character string is not in a standard unambiguous format
  46. Remove rows with all or some NAs (missing values) in data.frame
  47. duplicate ‘row.names’ are not allowed error
  48. Remove all of x axis labels in ggplot
  49. Sum rows in data.frame or matrix
  50. Error: unexpected ‘}’ in “}” in R [duplicate]
  51. Error in table “all arguments must have the same length”
  52. How to not run an example using roxygen2?
  53. Error with apply function
  54. How do you create vectors with specific intervals in R?
  55. Linear model function lm() error: NA/NaN/Inf in foreign function call (arg 1)
  56. Increase number of axis ticks
  57. Converting data frame column from character to numeric
  58. How to assign colors to categorical variables in ggplot2 that have stable mapping?
  59. Singularity in backsolve at level 0, block 1 in LME model
  60. “installation of package ‘FILE_PATH’ had non-zero exit status” in R
  61. Is there a dictionary functionality in R
  62. Plot two graphs in same plot in R
  63. reshape2 melt warning message
  64. ggplot2 manually specifying colour with geom_line
  65. dcast warning: ‘Aggregation function missing: defaulting to length’
  66. remove all variables except functions
  67. How to update a package in R?
  68. Run R script from command line
  69. Non-conformable arrays error in code
  70. What causes an R script to get Killed?
  71. What’s the difference between facet_wrap() and facet_grid() in ggplot2?
  72. ggplot2, facet_grid, free scales?
  73. dplyr mutate with conditional values
  74. How do I install an R package from source?
  75. How can I convert Json to data frame in R
  76. lmer error: grouping factor must be < number of observations
  77. R Error (from NA’s to 0): duplicate subscripts for column in Data Frame
  78. incorrect number of subscripts on matrix in R
  79. Error in rbind(deparse.level, …) : numbers of columns of arguments do not match R
  80. Creating box plot on exercise
  81. What is the meaning of the dollar sign “$” in R function()?
  82. How to split data into training/testing sets using sample function
  83. How to sort a data frame by alphabetic order of a character variable in R?
  84. Error in na.fail.default(as.ts(x)) : missing values in object in time series forecasting
  85. Argument “No” is missing, with no default
  86. R apply function with multiple parameters
  87. Geometric Mean: is there a built-in?
  88. Error in na.fail.default: missing values in object – but no missing values
  89. Error: Invalid number of ‘breaks’ in R
  90. Convert the values in a column into row names in an existing data frame
  91. Deleting rows that are duplicated in one column based on the conditions of another column
  92. Replace all 0 values to NA
  93. The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or dataframe
  94. Merge error : negative length vectors are not allowed
  95. Error Error in storage.mode(x) <- "double" : 'list' object cannot be coerced to type 'double'
  96. why nrow(dataframe) and length(dataframe) in r give different results?
  97. Meaning of objects being masked by the global environment
  98. Subset and ggplot2
  99. Create a matrix of scatterplots (pairs() equivalent) in ggplot2
  100. cbind warnings : row names were found from a short variable and have been discarded

Leave a Comment

tech