TypeError: rsub() received an invalid combination of arguments - got (Tensor, numpy.ndarray), but
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2022-05-27 12:16:47
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TypeError: rsub() received an invalid combination of arguments - got (Tensor, numpy.ndarray), but expected one of:
- (Tensor input, Tensor other, *, Number alpha)
- (Tensor input, Number other, Number alpha)
在写Logistic回归最后,将模型的参数取出来,并将直线画出来,报错
原因:张量变量不能在一个式子中同用
原:
w0, w1 = logistic_model.lr.weight[0]
w0 = w0.item()
w1 = w1.item()
b = logistic_model.lr.bias.data[0]
plot_x = np.arange(30, 100, 0.1)
plot_y = (-w0 * plot_x - b) / w1
plt.plot(plot_x, plot_y)
修正:
w0, w1 = logistic_model.lr.weight[0]
w0 = w0.item()
w1 = w1.item()
b = logistic_model.lr.bias.data[0]
plot_x = np.arange(30, 100, 0.1)
plot_y = (-w0 * torch.from_numpy(plot_x) - b) / w1 #
plt.plot(plot_x, plot_y.numpy()) #
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