How to increase the space between the bars in a bar plot in ggplot2?

Question

How can I increase the space between the bars in a bar plot in ggplot2 ?

Answer 1

For space between factor bars use

ggplot(data = d, aes(x=X, y=Y, fill=F)) 
 + geom_bar(width = 0.8, position = position_dodge(width = 0.9))

The width in geom_bar controls the bar width in relation to the x-axis while the width in position_dodge control the width of the space given to both bars also in relation to the x-axis. Play around with the width to find one that you like.