I recently upgraded to R Studio Version 1.1.463. However, I am having issues with several ggplots related to factors. Here is one of the cases where I get the error:
I have a data frame (df) with 3 variables:
- Name (factor, with 3 levels)
- Type (factor, with 35 levels)
- Group (factor, with 6 levels)
When I want to arrange a Data Frame (df) by levels of a factor, as follows
df$Type <- factor(df$Type, levels = df$Type[order(df$Group)])
in order to plot a geom_tile as in this example:
print(ggplot(df, aes(x = factor(Name), y = Type, fill = Group)) +
geom_tile()
I get the following error:
"Error in `levels<-`(`*tmp*`, value = as.character(levels)) : factor level [2] is duplicated"
I have checked the factors for all three variables, using
levels(df$Name)
levels(df$Group)
levels(df$Type)
and they are not duplicated. If I don't run the first line of code mentioned in this example, the plot is produced, but not in the order I want (I want all Types of the same Group to be placed close together).
If I run the graph on R Studio Version 1.0.136, it works fine.
I appreciate any clue as to what could be going on.