Example 1: scatter plot python
df.plot('x_axis', 'y_axis', kind='scatter')
Example 2: dizionari python
>>> d = {'a': 1, 'b': 2, 'c': 3}
>>> len(d)
3
>>> d.items()
dict_items([('c', 3), ('a', 1), ('b', 2)])
>>> d.keys()
dict_keys(['c', 'a', 'b'])
>>> d.values()
dict_values([3, 1, 2])
>>> d.get('c', 0)
3
>>> d.get('x', 0)
0
>>> d
{'c': 3, 'a': 1, 'b': 2}
>>> d.pop('a', 0)
1
>>> d.pop('x', 0)
0
>>> d
{'c': 3, 'b': 2}
>>> d.pop('x')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
KeyError: 'x'
>>> d.popitem()
('c', 3)
>>> d
{'b': 2}
>>> d.update({'a': 1, 'c': 3})
>>> d
{'c': 3, 'a': 1, 'b': 2}
>>> d.clear()
>>> d
{}
Example 3: how to do scatter plot in pyplot
import numpy as npimport matplotlib.pyplot as plt
N = 500x = np.random.rand(N)
y = np.random.rand(N)
colors = (0,0,0)
area = np.pi*3
plt.scatter(x, y, s=area, c=colors, alpha=0.5)
plt.title('Scatter plot pythonspot.com')
plt.xlabel('x')
plt.ylabel('y')
plt.show()
Example 4: scatter plot of a dataframe in python
>>> ax2 = df.plot.scatter(x='length',
... y='width',
... c='species',
... colormap='viridis')
Example 5: matplotlib scatter plot python
import numpy as np
np.random.seed(19680801)
import matplotlib.pyplot as plt
fig, ax = plt.subplots()
for color in ['tab:blue', 'tab:orange', 'tab:green']:
n = 750
x, y = np.random.rand(2, n)
scale = 200.0 * np.random.rand(n)
ax.scatter(x, y, c=color, s=scale, label=color,
alpha=0.3, edgecolors='none')
ax.legend()
ax.grid(True)
plt.show()
Example 6: matplotlib scatter
import matplotlib.pyplot as plt
%matplotlib inline
fig, ax = plt.subplots()
ax.scatter(x, y)
ax.set_title("Title")
ax.set_xlabel("X_Label")
ax.set_ylabel("Y_Label")