#80 Contour plot with seaborn

Here are 3 contour plots made using the seaborn python library. You have to provide 2 numerical variables as input (one for each axis). The function will calculate the kernel density estimate and represent it as a contour plot or density plot. Note that you can use the same argument as for a 1D density plot to custom your chart. ‘Cmap’ allows you to choose a colour palette, ‘shade’ controls the presence of a shade and so on..

# library & dataset
import seaborn as sns
df = sns.load_dataset('iris')

# Basic 2D density plot
sns.set_style("white")
sns.kdeplot(df.sepal_width, df.sepal_length)
#sns.plt.show()

# Custom it with the same argument as 1D density plot
sns.kdeplot(df.sepal_width, df.sepal_length, cmap="Reds", shade=True, bw=.15)

# Some features are characteristic of 2D: color palette and wether or not color the lowest range
sns.kdeplot(df.sepal_width, df.sepal_length, cmap="Blues", shade=True, shade_lowest=True, )
sns.plt.show()