wangchaoxjtu的专栏

安装模块时提示Collecting package metadata (repodata.json): failed最近在安装python模块的时候出现错误提示：创建虚拟环境失败，错误代码如下图所示：Collecting package metadata (repodata.json): failedProxyError: Conda cannot proceed due to an error in your proxy configuration.Check for typos and ot

在使用sigmoid函数时报这个错误，看到了有个博客说是因为类的调用出现错误，但是不知道怎么改。错误写法x = nn.Sigmoid(x)12正确写法outlayer = nn.Sigmoid() # 需要先对类实例化，才能调用x = outlayer(x)123官网例子：m = nn.Sigmoid()loss = nn.BCELoss()input = torch.randn(3, requires_grad=True)target = torch.empty(3).r

环境：Anaconda3-5.3.0-Windows-x86_64   Pymc3安装顺利，但是在运行https://docs.pymc.io/notebooks/getting_started.html#Installation中的测试程序 with basic_model:# draw 500 posterior samples      trace = pm.sample...