How to fill Pie chart with datas from MySql Datas
Question:
I got datas from MySql Database.
age_query = "SELECT age FROM test"
mycr.execute(wiek_query)
res = mycr.fetchall()
How to fill pie chart with "res" variable.
Type() shows me
print(type(res)) #list
When i do
x = np.array(res)
plt.pie(x)
plt.show()
i got error: ValueError: x must be 1D
What i have to do to fill Pie chart with res variable.
Answers:
Have to use flatten() after pie(x)
x = x.flatten()
import numpy as np
import matplotlib.pyplot as plt
a = np.array([[44], [23], [25], [39], [34], [20], [44], [31], [32], [42]], np.int32)
a = a.ravel()
plt.pie(a)
plt.show()
I got datas from MySql Database.
age_query = "SELECT age FROM test"
mycr.execute(wiek_query)
res = mycr.fetchall()
How to fill pie chart with "res" variable.
Type() shows me
print(type(res)) #list
When i do
x = np.array(res)
plt.pie(x)
plt.show()
i got error: ValueError: x must be 1D
What i have to do to fill Pie chart with res variable.
Have to use flatten() after pie(x)
x = x.flatten()
import numpy as np
import matplotlib.pyplot as plt
a = np.array([[44], [23], [25], [39], [34], [20], [44], [31], [32], [42]], np.int32)
a = a.ravel()
plt.pie(a)
plt.show()