解决Python的your data either using array.reshape(-1, 1) if your data has a single featur

最新推荐文章于 2023-10-30 11:26:03 发布

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最新推荐文章于 2023-10-30 11:26:03 发布

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分类专栏： Python 文章标签： python 决策树 reshape

本文链接：https://blog.youkuaiyun.com/zhanglu1236789/article/details/84956259

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今天写关于决策树的一些算法的时候，卧槽，mmp,竟然出现了红色的警示错误，

oneRowX: [0. 0. 1. 0. 1. 1. 0. 0. 1. 0.]
newRowX: [1. 0. 0. 0. 1. 1. 0. 0. 1. 0.]
Traceback (most recent call last):
  File "D:/pythoncode/jqxi/tree/tree.py", line 64, in <module>
    predictedY = clf.predict(newRowX)
  File "F:\python\python3\lib\site-packages\sklearn\tree\tree.py", line 412, in predict
    X = self._validate_X_predict(X, check_input)
  File "F:\python\python3\lib\site-packages\sklearn\tree\tree.py", line 373, in _validate_X_predict
    X = check_array(X, dtype=DTYPE, accept_sparse="csr")
  File "F:\python\python3\lib\site-packages\sklearn\utils\validation.py", line 441, in check_array
    "if it contains a single sample.".format(array))
ValueError: Expected 2D array, got 1D array instead:
array=[1. 0. 0. 0. 1. 1. 0. 0. 1. 0.].
Reshape your data either using array.reshape(-1, 1)