I have a data frame consisting of a column consisting of 200 values which can assume any one of three possible values with respect to a categorical variable. Assume that we are interested in creating a bar chart. How do I add labels (giving the counts for each possible value) on the top of three bars in the bar chart? [ I know we can use stat=identity when the values in the columns are used for heights. But this is a different situation. I would like to avoid any other intermediate code ].... Thanks...
You could make an aggregate data.frame counting the different values.
An example:
data
Dear Sampath,
stat_count() produces invisibly a statistics called 'count'. You can get the value with ..count.. or in the newer versions of ggplot2: stat(count).
So these may write the values above your bars:
ggplot(data, aes(x = column)) + geom_bar() + geom_text(stat = "count", aes(label = ..count..), vjust = -1)
ggplot(data, aes(x = column)) + geom_bar() + geom_text(stat = "count", aes(label = stat(count)), vjust = -1)
HTH,
Ákos
+geom_text(x = 2.5, y = 2.5, label = "name", color="red", fontface = 2)
###change x and y value to adjust the label position (based on the units of your x-axis and y-axis )，you can name your label by typing “your label name”.
If you want to add multiple labels you can run multipe codes as follows:
+geom_text(x = 2.5, y = 2.5, label = "A", color="red", fontface = 2) +geom_text(x = 2.5, y = 3.5, label = "B", color="red", fontface = 2)
+geom_text(x = 2.5, y = 4.5, label = "C", color="red", fontface = 2)
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