并通过可视化手段直观地展示环境污染的影响。这可以通过绘制预测值和真实值的对比图、特征重要性图等方式来实现。```import matplotlib.pyplot as plt# 绘制预测值与真实值对比图plt.scatter(y_test, y_pred... 我们将使用一个简化的环境数据集,其中包含各种环境因素,如温度、湿度、风速等,以及相应的污染级别。```# 导入必要的库import pandas as pdimport numpy as npfrom sklearn.model_selection import train_tes...
matplotlib 绘制 excel```pythonimport matplotlib.pyplot as pltimport xlwings as xwfig = plt.figure()plt.plot([1, 2, 3])sheet = xw.Book().sheets[0]sheet.pictures.add(fig, name='MyPlot', updat... #### b.合并 Excel批量合并现在是我最常用的功能,特别是做数据分析的时候,数据一般存储在一个或者多个 excel 表格中```python# -*- coding: utf-8 -*-import osimport pandas as pdimport numpy as npdir...
并上传到TOS的TensorFlow目录下。```# TensorFlow and tf.kerasimport tensorflow as tffrom tensorflow import keras# Helper librariesimport numpy as npimport gzipfrom tensorflow.python.keras.utils import get_fileimport matplotlib as mplmpl.use('Agg')import matplotlib.pyplot as pltprint(tf.__version__)#fashion_mnist = keras.datasets.fashion_mnist#(train_images, train_labels), (test_i...
Dataset.prefetch() 会创建一个从数据集中预取 buffer\_size 大小的数据集。 ``` AUTOTUNE = tf.data.AUTOTUNE train_ds = train_ds.cache().shuffle(1000).prefetch(buffer_size=AUTOTUNE)val_ds = val_ds.cache().prefetch(buffer_size=AUTOTUNE) ```接下来,我们来展示一下待训练数据中的前9张图片。``` import matplotlib.pyplot as plt ...