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有我的代碼(書中關於機器學習的代碼示例),但最終並沒有出現pd.plotting.scatter_matrix。Python熊貓繪製
import sys
import mglearn as mglearn
import pandas as pd
from pandas.plotting import scatter_matrix
import tkinter
import matplotlib
import numpy as np
import scipy as sp
import IPython
import sklearn
from sklearn.datasets import load_iris
from sklearn.model_selection import train_test_split
iris_dataset = load_iris()
print("Ключи iris_datasets: \n{}".format(iris_dataset.keys()))
print(iris_dataset['DESCR'][:193] + "\n...")
print("Названия ответов: {}".format(iris_dataset['target_names']))
print("Первые пять строк массива data:\n{}".format(iris_dataset['data'][:5]))
X_train, X_test, y_train, y_test = train_test_split(
iris_dataset['data'], iris_dataset['target'], random_state=0)
# print("X: \n" + format(X_train))
iris_dataframe = pd.DataFrame(X_train, columns=iris_dataset.feature_names)
grr = pd.plotting.scatter_matrix(iris_dataframe, c=y_train, figsize=(15, 15), marker='o',
hist_kwds={'bins': 20}, s=60, alpha=.8, cmap=mglearn.cm3)
嘗試做smtng像grr.plot()
,沒有錯誤,但圖形沒有出現..誰知道爲什麼嗎?