How to convert a bar histogram into a line histogram in R?
The histograms are meant to be bars but representing them as a continuous line makes more visual sense. Using default R graphics (i.e. without installing ggplot) we can do the following, which might also make what the density function does a bit clearer:
# Generate some data
data=rnorm(1000)
# Get the density estimate
dens=density(data)
# Plot y-values scaled by number of observations against x values
plot(dens$x,length(data)*dens$y,type="l",xlab="Value",ylab="Count estimate")