将一个拟合的威布尔分布(fitdistr)添加到一个地_bar (ggplot2)分类图中。

I have created a barplot of Age vs. Population size (by gender) from Census data in ggplot2. Similarly, I have used the 'fitdist' function from the fitdistrplus package to derive Weibull parameters for the normalised (by maximum observed population across all Age bins) population data.I have created a barplot of Age vs. Population