使用ggplot2-R的已知密度直方图

Question

I have a vector of data with random variable values and another vector with the respective probabilities. Is there a known function which cleverly draws the histogram or approximate density function? Doing simple line plots is not always very informative due to outlier data and/or a concentration of points around some value. Thanks.

EDIT: I would like to use ggplot2.

Answer 1

Here you have an example how you could use ggplot2 to make a histogram, density or both.

library(ggplot2)

ggplot(data = iris, aes(x = Sepal.Length)) + 
  geom_histogram()

ggplot(data = iris, aes(x = Sepal.Length)) + 
  geom_density(colour = '#BD1515', fill = '#BD1515', alpha = 0.2)

ggplot(data = iris, aes(x = Sepal.Length, y = ..density..)) + 
  geom_histogram(fill = '#CF3030') + 
  geom_density(colour = '#BD1515', fill = '#BD1515', alpha = 0.35)