Cara memvisualisasikan data di Python?

Berlatih Pertanyaan Wawancara Coding di Python

Kirill Smirnov

Data Science Consultant, Altran

matplotlib

import matplotlib.pyplot as plt

diagram sebar
histogram
boxplot

Dataset

import pandas as pd

diabetes = pd.read_csv('diabetes.csv')
diabetes = diabetes[[
    'n pregnant', 'plasma glucose', 'blood pressure', 'skin thickness',
    'serum insulin', 'bmi', 'age', 'test result']]
print(diabetes.head())

   n pregnant  plasma glucose  blood pressure  skin thickness  serum insulin   bmi  age test result
0           6           148.0            72.0            35.0            NaN  33.6   50    positive
1           1            85.0            66.0            29.0            NaN  26.6   31    negative
2           8           183.0            64.0             NaN            NaN  23.3   32    positive
3           1            89.0            66.0            23.0           94.0  28.1   21    negative
4           0           137.0            40.0            35.0          168.0  43.1   33    positive

Diagram sebar

Buat diagram sebar

import matplotlib.pyplot as plt

plt.scatter(
    diabetes['serum insulin'],
    diabetes['plasma glucose']
)
plt.show()

Diagram sebar

Buat diagram sebar

import matplotlib.pyplot as plt

plt.scatter(
    diabetes['serum insulin'],
    diabetes['plasma glucose']
)

plt.title('Plasma Glucose vs Serum Insulin')

plt.show()

Diagram sebar

Buat diagram sebar

import matplotlib.pyplot as plt

plt.scatter(
    diabetes['serum insulin'],
    diabetes['plasma glucose']
)

plt.title('Plasma Glucose vs Serum Insulin')

plt.xlabel('Serum Insulin')
plt.ylabel('Plasma Glucose')

plt.show()

Diagram sebar

Histogram

Buat histogram

import matplotlib.pyplot as plt

plt.hist(diabetes['bmi'])

plt.title('Histogram of BMI index')

plt.xlabel('BMI index')
plt.ylabel('counts')

plt.show()

Histogram

Buat histogram

import matplotlib.pyplot as plt

plt.hist(diabetes['bmi'], bins=20)

plt.title('Histogram of BMI index')

plt.xlabel('BMI index')
plt.ylabel('counts')

plt.show()

Histogram

Boxplot

Buat boxplot

import seaborn as sns

sns.boxplot('test_result', 'bmi', data=diabetes)
plt.title('Boxplot of BMI index')

plt.show()

Boxplot

Buat boxplot

import seaborn as sns

sns.boxplot(
    x='test_result',
    y='bmi',
    data=diabetes
)
plt.title('Boxplot of BMI index')

plt.show()

Boxplot

Buat boxplot

import seaborn as sns

sns.boxplot(
    y='test_result',
    x='bmi',
    data=diabetes
)
plt.title('Boxplot of BMI index')

plt.show()

Boxplot

Ayo berlatih!

Berlatih Pertanyaan Wawancara Coding di Python