Assigning continuous fill color to geom_bar

Question

I am generating a bar chart from data that is in the following format:

count | month
------|-----------
1000  | 2012-01-01
10000 | 2012-02-01

I

Answer 1

You haven't assigned the fill aesthetic to anything: aes(month, count, fill = count) should do the trick.

Complete code:

ggplot(userData, aes(month, count, fill = count)) +
    geom_bar(stat = "identity") +
    scale_x_date() + 
    scale_fill_continuous(low="blue", high="red") +
    labs(x= "Time", y="Count")

(limits are probably useless now, but feel free to add them back)