从 pandas.core.series.series 检索数据并将它们保存到矩阵中

如何解决从 pandas.core.series.series 检索数据并将它们保存到矩阵中

我在运行程序时生成了一个变量，它的类型为系列，内容如下所示。可以看出test_prior是一个系列，其中每个系列元素也是一个系列。如何检索这些元素系列并将它们保存到一个 numpy 数组中。或者，是否可以将其级数（即 test_prior）保存到矩阵中？

type(test_prior)
pandas.core.series.Series

test_prior
0      [0.0032125000000000005,0.003213987572590001,...
1      [0.0037124999999999997,0.00371353755063,0.00...
2      [0.0003125,0.0003170377214300023,0.000321575...
3      [0.0048625,0.004865587650670002,0.0048686753...
4      [0.0020875,0.0020882125347700003,0.002088925...
                             ...                        
195    [0.0010625,0.0010631875335500003,0.001063875...
196    [0.0009875,0.0009895876018700012,0.000991675...
197    [0.0024375,0.0024401126274900013,0.002442725...
198    [0.0022375,0.0022403376384700015,0.002243175...
199    [0.0005125,0.000514487596990001,0.0005164751...
Length: 200,dtype: object

解决方法

我认为您可以将 Series 转换为 DataFrame，然后使用 explode：

test_prior.to_frame().apply(lambda c: c.explode(),axis=1)

请注意，这仅在每行中的数组长度相同时才有效。但如果不是这种情况，那么将您的数据排列成两个维度似乎没有意义。