TypeError: ufunc 'sqrt' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''


使用matplotlib绘制散点图时出现错误:

TypeError: ufunc 'sqrt' not supported for the input types, and the inputs could not be safely coerced to any supported types according to the casting rule ''safe''

原因:plt.scatter(myCent[:,0],myCent[:,1],'sk')  scatter()方法不支持'sk'这种标记方法。

解决方法:

将scatter换成plot。


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