ValueError: c of shape (1, 400) not acceptable as a color sequence for x with size 400, y with size 400
# Visualize the data:
plt.scatter(X[0, :], X[1, :], c=Y.reshape(400), s=40, cmap=plt.cm.Spectral);
Y改成Y.reshape(400)
plt.scatter(X[0, :], X[1, :], c=Y, s=40, cmap=plt.cm.Spectral)出错
原文：https://www.cnblogs.com/douzujun/p/10291350.html