r - Position geom_text on dodged barplot

Question

I tried to make the title self-explanatory, but here goes - data first:

dtf <- structure(list(variable = structure(c(1L, 1L, 2L, 2L, 3L, 3L, 
4L, 4L, 5L, 5L), .Label = c("vma", "vla", "ia", "fma", "fla"), class = "factor"), 
    ustanova = structure(c(1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L, 1L, 
    2L), .Label = c("srednja ?kola", "fakultet"), class = "factor"), 
    `(all)` = c(42.9542857142857, 38.7803203661327, 37.8996138996139, 
    33.7672811059908, 29.591439688716, 26.1890660592255, 27.9557692307692, 
    23.9426605504587, 33.2200772200772, 26.9493087557604)), .Names = c("variable", 
"ustanova", "(all)"), row.names = c(NA, 10L), class = c("cast_df", 
"data.frame"), idvars = c("variable", "ustanova"), rdimnames = list(
    structure(list(variable = structure(c(1L, 1L, 2L, 2L, 3L, 
    3L, 4L, 4L, 5L, 5L), .Label = c("vma", "vla", "ia", "fma", 
    "fla"), class = "factor"), ustanova = structure(c(1L, 2L, 
    1L, 2L, 1L, 2L, 1L, 2L, 1L, 2L), .Label = c("srednja ?kola", 
    "fakultet"), class = "factor")), .Names = c("variable", "ustanova"
    ), row.names = c("vma_srednja ?kola", "vma_fakultet", "vla_srednja ?kola", 
    "vla_fakultet", "ia_srednja ?kola", "ia_fakultet", "fma_srednja ?kola", 
    "fma_fakultet", "fla_srednja ?kola", "fla_fakultet"), class = "data.frame"), 
    structure(list(value = structure(1L, .Label = "(all)", class = "factor")), .Names = "value", row.names = "(all)", class = "data.frame")))

And I'd like to create a dodged barplot, do the coord_flip and put some text labels inside the bars:

ggplot(bar) + geom_bar(aes(variable, `(all)`, fill = ustanova), position = "dodge") +
 geom_text(aes(variable, `(all)`, label = sprintf("%2.1f", `(all)`)), position = "dodge") +
 coord_flip()

you can see output here.

I reckon I'm asking for something trivial. I want the text labels to "follow" stacked bars. Labels are placed correctly on the y-axis, but how to position them correctly on x-axis?

Answer 1

Is this what you want?

ggplot(bar) + 
  geom_bar(aes(variable, `(all)`, fill = ustanova), position = "dodge") +
  geom_text(aes(variable, `(all)`, label = sprintf("%2.1f", `(all)`)), 
            position = position_dodge(width = 1)) + 
  coord_flip()

The key is using position = position_dodge(width = 1) instead of position = "dodge", which is just a shortcut without any parameter.

---

In ggplot2_2.0.0 you find several examples in ?geom_text on how to position geom_text on dodged or stacked bars (the code chunk named "# Aligning labels and bars"). The Q&A What is the width argument in position_dodge? provides a more thorough description of the topic.