Scatter plot with variable marker size (seaborn)

Question

I am using a seaborn pairplot to plot a scatter plot of different dimensions of my datapoints. However, I want the markers of the datapoints to have a size that

Answer 1

import seaborn as sns
import matplotlib.pyplot as plt
iris = sns.load_dataset("iris")

size = 100 * (iris.petal_length / iris.petal_length.max())
g = sns.PairGrid(iris, vars=["sepal_length", "sepal_width"], size=5)
g.map(plt.scatter, s=size)