r - Adding loess regresion line on a hexbin plot

Question

I have been trying to find method to add a loess regression line on a hexbin plot. So far I do not have any success... Any suggestions?

My code is as follow:

bin<-hexbin(Dataset$a, Dataset$b, xbins=40)

plot(bin, main="Hexagonal Binning",
     xlab = "a", ylab = "b",
     type="l")

Answer 1

I would suggest using ggplot2 to build the plot.

Since you didn't include any example data, I've used the palmerpenguins package dataset for the example below.

library(palmerpenguins) # For the data
library(ggplot2)        # ggplot2 for plotting



ggplot(penguins, aes(x = body_mass_g, 
                     y = bill_length_mm)) + 
  geom_hex(bins = 40) + 
  geom_smooth(method = 'loess', se = F, color = 'red') 

^{Created on 2021-01-05 by the reprex package (v0.3.0)}