With this data: df <- data.frame(value =c(20, 50, 90), group = c(1, 2,3)) I can get a bar chart: df %>% ggplot(aes(x = group, y = value, fill = value)) + geom_col() + coord_flip()+ sca...

I want to draw a bar chart with three columns, where two arrows start from one column to the other two columns and these arrows do not overlap each other, as shown below. I managed to produce the ...

I am plotting time series data in half-hour intervals, using geom_col() to show number of birds counted in each interval. ggplot2 plots each bar centered over the x-axis tick mark, but I need each ...

I am using ggplot to draw a bar chart. How can I change the order of the groups in the bars? In the following example, I want to have type=1984 as the first stack of the bars, then type=1985 on top...