Getting range is too small for min.n error

Question

I am trying to make a line graph of some performance data that I have collected using R. I want to graph each cpu and the total. I have a Names column in my txt file and I

Answer 1

The error message is due to fact that your x values are datetime and difference between two values is just one second (too small to show data). You have to use scale_x_datetime() and set breaks to "1 sec" to show your data.

library(ggplot2)
library(scales)
ggplot(cpu, aes(Date, Usage, colour=Name)) + 
   geom_line(size=1) + 
   scale_x_datetime(breaks = date_breaks("1 sec"))