The problem of computing Python matrix

# When calculating the loss function , Always reporting mistakes
# existing ：X by （97, 2) Of dataframe
#y by （97,1） Of dataframe
#theta by （1,2） Of dataframe

# The code is as follows ：

def Compute_cost(theta, X, y): total_cost = (X*theta.T-y)**2 m = len(y) J = total_cost/(2*m) return J 

print(Compute_cost(theta,X,y))

# Operation results and error reporting contents
Unable to coerce to DataFrame, shape must be (97, 2): given (2, 1)

# Guess it might be dataframe Of type problem , use np.mat() transformation theta After that, the problem still exists