Python sklearn错误：Expected 2D array, got scalar array instead…Reshape your data…

bmi_life_model.fit(x,y)
bmi_life_model.predict(21.079)

ValueError: Expected 2D array, got scalar array instead:
array=21.079.Reshape your data either using array.reshape(-1, 1) if your data has a single feature or array.reshape(1, -1) if it contains a single sample.

按照回归模型预测，出现错误，该错误是由于sklearn版本更新后，数据维度不一致导致，代码改成以下即可：

bmi_life_model.predict([[21.079]])

array([[60.31486644]])

模型运行成功！