torch画散点图

import torch
from torch.autograd import Variable
import torch.nn.functional as F
import matplotlib.pyplot as plt
x=torch.unsqueeze(torch.linspace(-1,1,100),dim=1)   #torch.linspace本身是一维向量，unsqueeze是增加维度，把一维化为二维
y=x.pow(2)+0.2*torch.rand(x.size())   
#0.2*torch.rand(x.size())相当于给散点图加噪声
x,y=Variable(x),Variable(y)
plt.scatter(x.data.numpy(),y.data.numpy())
plt.show()