#print(mu)#print(sigma)X_norm=(X-mu)/sigmareturnX_norm,mu,sigma #计算损失 defcomputeCost(X,y,theta):m=y.shape[0]#J=(np.sum((X.dot(theta)-y)**2))/(2*m)C=X.dot(theta)-yJ2=(C.T.dot(C))/(2*m)returnJ2#梯度下降 defgradientDescent(X,y,theta,alpha,num_iters):m=y.sha...
print()函数可以同时输出多个变量print()函数的详细语法格式如下:print (value,...,sep='',end='\n',file=sys.stdout,flush=False)从上面可以看出,values参数可以接受任意多个变量或值,因此print()函数完全可以输出多个值。例子:1 user_name = '李四' 2 user_age = 18 3 print("姓名:" ...
# Print out some data points print('First 10 examples from the dataset: \n') print(' x = ',x[range(10),:],'\ny=',y[range(10),:]) First 10 examples from the dataset: x = [[2104 3] [1600 3] [2400 3] [1416 2] [3000 4] [1985 4] [1534 3] [1427 3] [1380 3] [...
# Print out some data points print('First 10 examples from the dataset: \n') print(' x = ',x[range(10),:],'\ny=',y[range(10),:]) First 10 examples from the dataset: x = [[2104 3] [1600 3] [2400 3] [1416 2] [3000 4] [1985 4] [1534 3] [1427 3] [1380 3] [...
print(y) print(z) Try it Yourself » Note:Make sure the number of variables matches the number of values, or else you will get an error. And you can assign thesamevalue to multiple variables in one line: Example x = y = z ="Orange" ...
print(cube(3)) # 27 # Multiple variables multiple_variable = lambda a, b, c: a ** 2 - 3 * b + 4 * c print(multiple_variable(5, 5, 3)) # 22 另一个函数中的 Lambda 函数 在另一个函数中使用 lambda 函数。 def power(x): ...
Assigning multiple values to multiple variables Example: roll_no, marks, name =10,70,"Jessa"print(roll_no, marks, name)# 10 20 Jessa Run In the above example, two integer values 10 and 70 are assigned to variablesroll_noandmarks, respectively, and string literal, “Jessa,” is assigned...
多变量线性回归(Linear Regression with multiple variables) (1) 多维特征 & 多变量梯度下降 (2)多维梯度下降的例子:特征缩放(Feature Scaling) (3)学习率(Learning rate) (4)正规方程(Normal equation) (5)python代码实现 学习完了机器学习的多变量线性回归课程,现在来将所学记录下来。
load(f) print(a_restore, b_restore, c_restore, d_restore) 在这个例子中,我们首先导入pickle模块,然后创建了一些变量。我们将这些变量保存到名为"variables.pkl"的文件中。然后,我们从文件中恢复这些变量,并打印它们的值。 推荐的腾讯云相关产品: 对象存储(COS):腾讯云对象存储(Cloud Object Storage)是一种...
Example: Assigning multiple values to multiple variables a, b, c =5,3.2,'Hello'print(a)# prints 5print(b)# prints 3.2print(c)# prints Hello Run Code If we want to assign the same value to multiple variables at once, we can do this as: ...