torch.sum(torch.sum(R, dim=2),dim=1).cpu().numpy()
时间: 2023-12-31 12:05:56 浏览: 96
pytorch基础框架知识学习.doc
这段代码的作用是对矩阵R进行求和操作。首先,使用torch.sum函数对R进行两次求和操作。第一次求和是在dim=2的维度上进行,即对矩阵R的第三个维度进行求和。第二次求和是在dim=1的维度上进行,即对第一次求和的结果再进行求和。最后,使用.cpu().numpy()将结果转换为numpy数组。所以,torch.sum(torch.sum(R, dim=2),dim=1).cpu().numpy()的作用是对矩阵R进行两次求和操作,并将结果转换为numpy数组。
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