histogram fro array in python i sns code example

Example 1: distribution seaborn

x = np.random.normal(size=100)
sns.distplot(x);

Example 2: scatter density plot seaborn

>>> iris = sns.load_dataset("iris")
>>> g = sns.jointplot("sepal_width", "petal_length", data=iris,
...                   kind="kde", space=0, color="g")