plt.figure(figsize=(16,9)) x=data.iloc[:,7:8] y=data.iloc[:,9:10] df1=pd.DataFrame() df1['CorX']=x df1['CorY']=y g1=sns.jointplot(x='CorX', y='CorY', data=df1, kind='reg', color='k') g1.set_axis_labels('X值','Y值',size=16)

matplotlib.rcParams['font.family']='SimHei' plt.figure(figsize=(20,15)) ax1=plt.subplot(211) Platform = data.groupby(by='Platform').sum() Platform =Platform.iloc[::,-1:].sort_values(by='Global_Sales',ascending=False) sns.barplot(x=Platform.index,y=Platform.Global_Sales,ax=ax1) plt.title("游戏平台累计发行量",size = 14) ax2=plt.subplot(212) Platform_near5 = data[data.Year>=2011].groupby(by='Platform').sum() Platform_near5 =Platform_near5.iloc[::,-1:].sort_values(by='Global_Sales',ascending=False) sns.barplot(x=Platform_near5.index,y=Platform_near5.Global_Sales,ax=ax2) plt.title("近五年游戏平台累计发行量",size = 14) plt.show()

2. plt.figure(figsize=(20,15))：这行代码创建一个大小为20x15英寸的画布。 3. ax1=plt.subplot(211)：这行代码创建一个包含两个子图的图像，并指定第一个子图的位置为(2, 1, 1)。 4. Platform = data.group...

import numpy as np import pandas as pd import matplotlib.pyplot as plt import pyhht # 读取csv文件数据 data = pd.read_csv('77.csv', header=None) time = data.iloc[:, 0].values charge = data.iloc[:, 1].values # EMD分解 decomposer = pyhht.EMD(charge) imfs = decomposer.decompose() # 绘制原始序列和分解后的IMF分量 plt.figure(figsize=(10, 6)) plt.plot(time, charge, label='Original') plt.xlabel('Time') plt.ylabel('Charge') plt.legend() plt.show() for i in range(imfs.shape[0]): plt.plot(time, imfs[i], label=f'IMF{i+1}') plt.xlabel('Time') plt.ylabel('Charge') plt.legend() plt.show() residuals = charge - np.sum(imfs, axis=0) plt.plot(time, residuals, label='Residuals') plt.xlabel('Time') plt.ylabel('Charge') plt.legend() plt.show()在上述代码后增写一段代码，使得上述代码中绘制的图片可以显示在一张图中

fig, axs = plt.subplots(nrows=imfs.shape[0]+1, ncols=1, figsize=(10, 10)) axs[0].plot(time, charge, label='Original') axs[0].set_xlabel('Time') axs[0].set_ylabel('Charge') axs[0].legend() for i ...

data=pd.read_csv('boston_house_prices.csv') x=data.iloc[:,:-1] y=data.iloc[:,-1] print(data.head(5)) x_train,x_test,y_train,y_test = train_test_split(x, y,\ test_size=0.2, random_state=8) # 测试集占20%，随机数种子：8 # 建立模型 model=Sequential() # 10个神经元进行线性拟合 model.add(Dense(10,input_shape=(13,))) # 输出层 model.add(Dense(1)) # 定义梯度下降算法和损失函数 model.compile(optimizer='adam',loss='mse') # 训练2500次 history=model.fit(x_train,y_train,epochs=250) # 绘制损失函数图像 plt.plot(history.epoch,history.history.get('loss')) plt.show() # 测试 y_fit=model.predict(x_test) plt.rcParams['font.sans-serif']='SimHei' plt.figure(figsize=(8,5)) plt.plot(np.arange(len(y_test)),y_test,color='r') plt.plot(np.arange(len(y_fit)),y_fit,color='b',linestyle=':') plt.show()请解释每行代码

15. plt.figure(figsize=(8,5)): 创建一个8x5的图形。 16. plt.plot(np.arange(len(y_test)),y_test,color='r'): 绘制测试集的真实值。 17. plt.plot(np.arange(len(y_fit)),y_fit,color='b',linestyle=':'): ...

import pandas as pdimport numpy as npimport matplotlib.pyplot as pltfrom statsmodels.tsa.api import ExponentialSmoothing# 读取数据data = pd.read_csv('car_sales.csv', index_col='Month', parse_dates=True)data.index.freq = 'MS'# 拆分训练集和测试集train = data.iloc[:-12]test = data.iloc[-12:]# 构建Holt-Winters季节性模型model = ExponentialSmoothing(train, trend='add', seasonal='add', seasonal_periods=12).fit()# 对测试集进行预测pred = model.forecast(12)# 绘制预测结果和实际值plt.figure(figsize=(10, 4))plt.plot(train.index, train.values, label='Training Data')plt.plot(test.index, test.values, label='Testing Data')plt.plot(pred.index, pred.values, label='Predicted Data')plt.title('Car Sales Forecast with Holt-Winters Model')plt.legend(loc='best')plt.show()我希望将前12个作为测试集，剩下的作为训练集，怎么改

plt.figure(figsize=(10, 4)) plt.plot(train.index, train.values, label='Training Data') plt.plot(test.index, test.values, label='Testing Data') plt.plot(pred.index, pred.values, label='Predicted Data')...

import numpy as np import pandas as pd import matplotlib.pyplot as plt from keras.models import Sequential # 导入keras from keras.layers import Dense plt.rcParams['font.sans-serif'] = 'SimHei' df = pd.read_csv("gdpcost.csv") print(df, df.shape) x_data = df.iloc[:, 1] y_data = df.iloc[:, 2] X = x_data Y = y_data plt.figure(figsize=(8, 5)) plt.scatter(X, Y) plt.show() model = Sequential() model.add(Dense(10, input_shape=(1,))) # 输出层 model.add(Dense(1)) # 定义梯度下降算法和损失函数 model.compile(optimizer='adam', loss='mse') # 训练2500次 history = model.fit(X, Y, epochs=250) # 绘制损失函数图像g plt.plot(history.epoch, history.history.get('loss')) plt.show() Y_fit = model.predict(X) w = model.layers[0].get_weights() b = model.layers[1].get_weights() print('weights:', w) print('bias:', b) # plot fit plt.scatter(X, Y, c='r', marker='s') plt.plot(X, Y_fit, c='b', marker='o') plt.legend(['蓝色：拟合点', '红色：散点图']) plt.show()请解释每行代码

13. plt.figure(figsize=(8, 5)): 创建一个8x5的图形。 14. plt.scatter(X, Y): 用散点图绘制X和Y的关系。 15. plt.show(): 显示图形。 16. model = Sequential(): 创建一个新的Sequential模型。 17. model...

import pandas as pd import numpy as np import matplotlib.pyplot as plt from sklearn import datasets from mpl_toolkits.mplot3d import Axes3D from sklearn.decomposition import PCA from sklearn.preprocessing import StandardScaler data=pd.read_csv('H:/analysis_results/mean_HN.csv') data.head() x=data.iloc[:,1:7] y=data.iloc[:,6] scaler=StandardScaler() scaler.fit(x) x_scaler=scaler.transform(x) print(x_scaler.shape) pca=PCA(n_components=3) x_pca=pca.fit_transform(x_scaler) print(x_pca.shape) #查看各个主成分对应的方差大小和占全部方差的比例 #可以看到前2个主成分已经解释了样本分布的90%的差异了 print('explained_variance_:',pca.explained_variance_) print('explained_variance_ratio_:',pca.explained_variance_ratio_) print('total explained variance ratio of first 6 principal components:',sum(pca.explained_variance_ratio_)) #可视化各个主成分贡献的方差 #fig1=plt.figure(figsize=(10,10)) #plt.rcParams['figure.dpi'] = 300#设置像素参数值 plt.rcParams['path.simplify'] = False#禁用抗锯齿效果 plt.figure() plt.plot(np.arange(1,4),pca.explained_variance_,color='blue', linestyle='-',linewidth=2) plt.xticks(np.arange(1, 4, 1))#修改X轴间隔为1 plt.title('PCA_plot_HN') plt.xlabel('components_n',fontsize=16) plt.ylabel('explained_variance_',fontsize=16) plt.show() plt.pause(0.5) plt.savefig('H:/analysis_results/Cluster analysis/pca_explained_variance_HN.png')保存的图像中，一片空白，如何修改

x = data.iloc[:,1:7] y = data.iloc[:,6] scaler = StandardScaler() scaler.fit(x) x_scaler = scaler.transform(x) print(x_scaler.shape) pca = PCA(n_components=3) x_pca = pca.fit_transform(x_...

plt.figure(figsize=(10, 5)) plt.plot(train_data[0], train_data[1], label='true') plt.plot(train_data.iloc[n_steps:, 0], model_stacked.predict(np.hstack((model_lstm.predict(train_x.reshape((-1, n_steps, len(top_freqs_idx)))), model_svr.predict(train_x[:, low_freqs_idx])).reshape((-1, 1))), label='pred') plt.xlabel('time/h') plt.ylabel('kwh') plt.title('Training Set') plt.legend() plt.show()以上代码报错，解释原因

plt.plot(train_data.iloc[n_steps:, 0], model_stacked.predict(np.hstack((model_lstm.predict(train_x.reshape((-1, n_steps, len(top_freqs_idx)))), model_svr.predict(train_x[:, low_freqs_idx])).reshape((-...

怎么样把import tkinter as tk import csv from tkinter import filedialog root = tk.Tk() root.title("数据科学基础") root.geometry("800x600") #修改字体 font = ("楷体", 16) root.option_add("Font", font) #修改背景颜色 root.configure(bg="pink") def import_csv_data(): global file_path file_path = filedialog.askopenfilename() # 读取CSV文件并显示在Text控件上 data = pd.read_csv(file_path) # 获取前5行数据 top_5 = data.head() # 将前5行数据插入到Text控件 #txt_data.delete('1.0'.tk.END) txt_data.insert(tk.END, top_5) #创建导入按钮和文本框 btn_import = tk.Button(root,text="导入CSV文件",command=import_csv_data) btn_import.pack() txt_data = tk.Text(root) txt_data.pack() root.mainloop()怎么样把这段代码和import pandas as pd import matplotlib.pyplot as plt from tkinter import from tkinter import filedialog from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg # 创建 Tkinter 窗口 root = Tk() # 设置窗口标题 root.title("CSV文件分析") # 创建标签 label = Label(root, text="请选择要导入的CSV文件：") label.pack() # 创建按钮 button = Button(root, text="选择文件") # 创建事件处理函数 def choose_file(): # 弹出文件选择对话框 file_path = filedialog.askopenfilename() # 读取CSV文件 df = pd.read_csv(file_path) # 创建标签 label2 = Label(root, text="请选择要显示的图像：") label2.pack() # 创建按钮 button1 = Button(root, text="散点图") button1.pack() button2 = Button(root, text="折线图") button2.pack() button3 = Button(root, text="柱状图") button3.pack() # 创建图形容器 fig_container = Frame(root) fig_container.pack() # 创建事件处理函数 def show_scatter(): # 获取数据 x = df.iloc[:, 0] y = df.iloc[:, 1] # 绘制散点图 fig = plt.figure(figsize=(4, 4)) plt.scatter(x, y) # 将图形显示在容器中 canvas = FigureCanvasTkAgg(fig, master=fig_container) canvas.draw() canvas.get_tk_widget().pack() def show_line(): # 获取数据 x = df.iloc[:, 0] y = df.iloc[:, 1] # 绘制折线图 fig = plt.figure(figsize=(4, 4)) plt.plot(x, y) # 将图形显示在容器中 canvas = FigureCanvasTkAgg(fig, master=fig_container) canvas.draw() canvas.get_tk_widget().pack() def show_bar(): # 获取数据 x = df.iloc[:, 0] y = df.iloc[:, 1] # 绘制柱状图 fig = plt.figure(figsize=(4, 4)) plt.bar(x, y) # 将图形显示在容器中 canvas = FigureCanvasTkAgg(fig, master=fig_container) canvas.draw() canvas.get_tk_widget().pack() # 绑定事件处理函数 button1.config(command=show_scatter) button2.config(command=show_line) button3.config(command=show_bar) # 绑定事件处理函数 button.config(command=choose_file) button.pack() # 运行窗口 root.mainloop()这段代码结合起来一起实现

plt.scatter(x, y) elif button2["state"] == "normal": plt.plot(x, y) elif button3["state"] == "normal": plt.bar(x, y) canvas = FigureCanvasTkAgg(plt.gcf(), master=fig_container) canvas.draw() ...

帮我优化一下代码 import matplotlib.pyplot as plt from matplotlib.offsetbox import OffsetImage, AnnotationBbox import pandas as pd import tkinter as tk from tkinter import filedialog import csv import numpy as np filepath = filedialog.askopenfilename() readData = pd.read_csv(filepath, encoding = 'gb2312') # 读取csv数据 print(readData) xdata = readData.iloc[:, 2].tolist() # 获取dataFrame中的第3列，并将此转换为list ydata = readData.iloc[:, 3].tolist() # 获取dataFrame中的第4列，并将此转换为list Color_map = { '0x0': 'r', '0x10': 'b', '0x20': 'pink', '0x30': 'm', '0x40': 'm', '0x50': 'm', '0x60': 'g', '0x70': 'orange', '0x80': 'orange', '0x90': 'm', '0xa0': 'b', '0xb0': 'g', '0xc0': 'g', '0xd0': 'orange', '0xe0': 'orange', '0xf0': 'orange', } plt.ion() fig = plt.figure(num = "蓝牙钥匙连接状态", figsize= (10.8,10.8),frameon= True) gs = fig.add_gridspec(1, 1) ax = fig.add_subplot(gs[0, 0]) colors = readData.iloc[:, 1].map(Color_map) plt.title("Connecting Status For Bluetooth Key") #plt.rcParams['figure.figsize']=(15, 15) ax.axis('equal') a,b = (0.,0.) r = [5,10] for r1 in r: theta = np.arange(0,r1np.pi,0.05) ax.plot(a+r1np.cos(theta),b+r1np.sin(theta),linestyle='-.',c = 'darkgrey') ax.spines['bottom'].set_position(('data', 0)) ax.spines['left'].set_position(('data', 0)) ax.spines['right'].set_position(('data', 0)) ax.spines['top'].set_position(('data', 0)) arr_img = plt.imread('D:\\2022\\测试工作\\蓝牙钥匙测试\\定位\\室内定位(v3.6.21).rar-1656500746516.室内定位(v3.6.21)\\车型图2.png') imagebox = OffsetImage(arr_img, zoom=0.3) ab = AnnotationBbox(imagebox, [0, 0],xybox=(0, 0),pad=0) ax.add_artist(ab) ticks = np.arange(-10,10,2) plt.xticks(ticks) plt.yticks(ticks) #plt.figure(figsize=(15,15)) plt.scatter(xdata, ydata, s=150, edgecolors = None, linewidths=0, alpha=0.3,c = colors) # 画散点图，:r表示点用*表示，颜色为红色 plt.legend() plt.ioff() plt.show() # 画图

ydata = readData.iloc[:, 3].tolist() Color_map = { '0x0': 'r', '0x10': 'b', '0x20': 'pink', '0x30': 'm', '0x40': 'm', '0x50': 'm', '0x60': 'g', '0x70': 'orange', '0x80': 'orange', '0x90': '...

逐句注释import matplotlib.pyplot as plt from sklearn.cluster import KMeans from sklearn.metrics import silhouette_score import pandas as pd data = pd.read_csv('xigua.csv') # 加载数据 print(data) print(data.shape) X = data.iloc[: ,1:3].values print(X) print(X.shape) plt.scatter(X[:, 0], X[:, 1], c = "red", marker = 'o', label = 'None') plt.ylabel('Sugar content') plt.xlabel('density') plt.legend(loc = 2) plt.show() #运用数学方法计算k的取值 score = [] for i in range(10): model = KMeans(n_clusters = i + 2) model.fit(X[:, 1:3]) #计算轮廓系数，系数取值范围[-1,1]，越接近1的，k的值越好 score.append(silhouette_score(X[:, 0:2], model.labels_, metric = 'euclidean')) plt.figure(figsize = (5, 4)) plt.plot(range(2, 12, 1), score) plt.show() #n_clusters表示k的取值，也就是聚成簇的数量 #fit()函数：做的就是模型训练 kmeans = KMeans(n_clusters = 3, random_state = 0, ).fit(X[:, 1:3]) label_pred = kmeans.labels_#获取聚类标签 print(label_pred) centroids = kmeans.cluster_centers_ #获取聚类簇心 print(centroids) #绘制结果 x0 = X[label_pred == 0] x1 = X[label_pred == 1] plt.scatter(x0[:, 0], x0[:, 1], c = "red", marker = 'o', label = 'label0') plt.scatter(x1[:, 0], x1[:, 1], c = "green", marker = '*', label = 'label1') plt.ylabel('Sugar content') plt.xlabel('density') plt.legend(loc = 2) plt.show()

plt.figure(figsize=(5, 4)) # 创建图像 plt.plot(range(2, 12, 1), score) # 绘制轮廓系数图像 plt.show() # 显示图像 kmeans = KMeans(n_clusters=3, random_state=0).fit(X[:, 1:3]) # 聚类模型 label_pred = ...

import pandas as pd from sklearn.manifold import TSNE import matplotlib.pyplot as plt # 读取数据集 customer = pd.read_csv('customer.csv',encoding='gbk') customer_data = customer.iloc[:,:-1] customer_target = customer.iloc[:,-1] # K-Means类聚 from sklearn.cluster import KMeans kmeans = KMeans(n_clusters=4,random_state=6).fit((customer_data)) # 使用TSNE进行数据降维，降成2维 tsne = TSNE(n_components=2,init='random', random_state=2).fit(customer_data) df = pd.DataFrame(tsne.embedding_) # 提取不同标签的数据 df1 = df[df['labels'] == 0] df2 = df[df['labels'] == 1] df3 = df[df['labels'] == 2] df4 = df[df['labels'] == 3] # 绘制图像 fig = plt.figure(figsize=(9,6)) # 用不同颜色表示不同数据 plt.plot(df1[0],df1[1],'bo',df2[0],df2[1],'r*', df3[0],df1[1],'gD',df4[0],df4[1],'kD') plt.show()这段代码有什么问题

这段代码有两个问题： 1. 在使用KMeans进行聚类时，没有将...fig = plt.figure(figsize=(9,6)) plt.plot(df1[0], df1[1], 'bo', df2[0], df2[1], 'r*', df3[0], df3[1], 'gD', df4[0], df4[1], 'kD') plt.show()

data = pd.read_csv('/home/w123/Documents/fatigue_detecting-master/TXT-data/5.14/2/Eye aspect ratio.txt') y = data.iloc[:, :-1].values.reshape(-1, 1) X = data.iloc[:, -1].values.reshape(-1, 1) regressor = LinearRegression() regressor.fit(X, y) y_pred = regressor.predict(X) print("Regression Function: y = {:.2f} + {:.2f}x".format(regressor.intercept_[0], regressor.coef_[0][0])) plt.scatter(X, y, color='blue') plt.plot(X, y_pred, color='red') plt.title('Linear Regression') plt.xlabel('Independent Variable') plt.ylabel('Dependent Variable') plt.legend(['Regression Line', 'Observations']) plt.show()改成三列数据分析

fig = plt.figure() ax = fig.add_subplot(111, projection='3d') ax.scatter(data['X1'], data['X2'], data['Y'], c='blue', marker='o') ax.plot_trisurf(data['X1'], data['X2'], y_pred.flatten(), color='red',...

plt.figure(4) D=data.iloc[:,0] D=list(D.unique()) listl=[] for d in D: dt=data.loc[data['车次']==d,['上车人数']] s=dt.sum() listl.append(s['上车人数'])

具体来说，代码首先创建一个名为4的新图形窗口，然后使用Pandas库中的iloc函数选择数据集的第一列（即车次列），并使用unique函数获取该列中的唯一值。接着，代码循环迭代所有唯一的车次值。在每次迭代中，代码使用...

select_sqli ="SELECT time,SUM(CASE WHEN type_c='两厢车' THEN xiaoliang ELSE 0 END)/SUM(xiaoliang) AS ratio,1 - SUM(CASE WHEN type_c='两厢车' THEN xiaoliang ELSE 0 END)/SUM(xiaoliang) AS ratio_complement FROM sheji.sale GROUP BY time;" cur.execute(select_sqli) data = pd.DataFrame(cur.fetchall(), columns=['time', 'portion','r_portion']) data.set_index('time') data = data.sort_index() data = data.iloc[:5, :] plt.figure(figsize=(9.42,1)) data.plot(kind='bar', stacked=True) # 设置标题和标签 plt.title('Sales Ratio of Different Categories') plt.xlabel('Category') plt.ylabel('Ratio') plt.xticks(rotation=90) # 显示图形 plt.savefig('portion.png',dpi=300) pix = QPixmap("portion.png") new_width = self.Market.label_4.width() new_height = int(pix.height() * new_width / pix.width()) scaled_pixmap = pix.scaled(QSize(new_width, new_height), Qt.AspectRatioMode.KeepAspectRatio,Qt.TransformationMode.SmoothTransformation) self.Market.label_4.setPixmap(scaled_pixmap) plt.close()为什么横轴变成0，1，2，3，4了，应该为日期

可以尝试在data.plot()函数中添加参数 x='time' 来指定横轴，例如 data.plot(kind='bar', stacked=True, x='time')。另外，你也可以尝试在绘制图形之前添加一行代码 data = data.set_index('time') 来将时间...

plt.figure(figsize=(16,9)) x=data.iloc[:,7:8] y=data.iloc[:,9:10] df1=pd.DataFrame() df1['CorX']=x df1['CorY']=y g1=sns.jointplot(x='CorX', y='CorY', data=df1, kind='reg', color='k') g1.set_axis_labels('X值','Y值',size=16)

data = data.iloc[:10, :]改成取后10行

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plt.figure(figsize=(16,9)) x=data.iloc[:,7:8] y=data.iloc[:,9:10] df1=pd.DataFrame() df1['CorX']=x df1['CorY']=y g1=sns.jointplot(x='CorX', y='CorY', data=df1, kind='reg', color='k') g1.set_axis_labels('X值','Y值',size=16)

data = data.iloc[:10, :]改成取后10行

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plt.figure(4) D=data.iloc[:,0] D=list(D.unique()) listl=[] for d in D: dt=data.loc[data['车次']==d,['上车人数']] s=dt.sum() listl.append(s['上车人数'])

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