Plotting with ggplot2: “Error: Discrete value supplied to continuous scale” on categorical y-axis

Question

The plotting code below gives Error: Discrete value supplied to continuous scale

What\'s wrong with this code? It works fine until I try to change the s

Answer 1

if x is numeric, then add scale_x_continuous(); if x is character/factor, then add scale_x_discrete(). This might solve your problem.