>>>expovariate(1 / 5) # Interval between arrivals averaging 5 seconds 5.148957571865031 >>>randrange(10) # Integer from 0 to 9 inclusive 7 >>>randrange(0, 101, 2) # Even integer from 0 to 100 inclusive 26 >>>choice(['win', 'lose', 'draw']) # Single random element from a sequen...
array([('Rex', 9, 81.), ('Fido', 3, 27.)], dtype=[('name', 'U10'), ('age', '<i4'), ('weight', '<f4')]) 1. 2. 3. 4. 5. x 是一个长度为 2 的一维数组,其数据类型是一个包含三个字段的结构: 1.长度为 10 或更少的字符串,名为 “name”。 2. 一个 32 位整数,名...
fromstatsmodels.tsa.arima_modelimportARIMA# 拟合ARIMA模型model=ARIMA(df['Traffic_Volume'],order=(5,1,0))model_fit=model.fit(disp=0)# 进行预测forecast,stderr,conf_int=model_fit.forecast(steps=60)# 绘制预测结果plt.figure(figsize=(10,6))plt.plot(df['Datetime'],df['Traffic_Volume'],label...
1.自动化文件管理 1.1 对目录中的文件进行排序 代码语言:javascript 代码运行次数:0 运行 AI代码解释 ``` # Python script to sort files in a directory by their extension import os fromshutil import move def sort_files(directory_path): for filename in os.listdir(directory_path): if os.path.is...
myarr = array(’i‘) <——–创建数组 myarr.append(3) <——–追加元素 取数组的值,通过下标 num1 = myarr[0] <———–第一个值 删除最后一个 myarr.pop() 删除第一个指定的X myarr.remove(x) 指定位置,插入值 myarr.insert(6,10) ...
array([[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]]) In [52]: np.average(a, axis=1) Out[52]: array([ 2.5, 6.5, 10.5]) In [53]: np.average(a, axis=0) Out[53]: array([5., 6., 7., 8.]) 3. 数组每一行或者每一列求加权平均 (python weight average array...
() + 1e-5)x *= 0.1# clip to [0, 1]x += 0.5x = np.clip(x, 0, 1)# convert to RGB arrayx *= 255if K.image_data_format() == 'channels_first':x = x.transpose((1, 2, 0))x = np.clip(x, 0, 255).astype('uint8')return xdef plot_filters(filters):newimage = np....
fromsklearnimportsvmimportjoblibimportnumpyasnp# customer agesX_train = np.array([50,17,35,23,28,40,31,29,19,62]) X_train = X_train.reshape(-1,1)# churn y/ny_train = ["yes","no","no","no","yes","yes","yes","no","no","yes"] clf = svm.SVC(gamma=0.001, C=100.)...
( x=array_dict[f'x_{year}'], y=array_dict[f'y_{year}'] + (len(year_list) - index) + 0.4, fill='tonexty', name=f'{year}'))# 添加文本 fig.add_annotation( x=-20, y=len(year_list) - index, text=f'{year}', showarrow=False, yshift=10)# 添加标题、图例、xy轴参数fig...
1.OpenGL绘制正方形 完整代码如下: # -*- coding: utf-8 -*- from OpenGL.GL import * from OpenGL.GLU import * from OpenGL.GLUT import * # 绘制图像函数 def display(): # 清除屏幕及深度缓存 glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT) # 设置红色 glColor3f(1.0, 0.0, 0.0) # 开始...