Question

我有不同条件下微RNA（miR）的测序数据（'比较'），我想创建一个点图，它将在不同的图表上显示每个miR的倍数变化。数据看起来像这样（并且是一个pandas data_frame）

      mir_Names                    Comparison   Fold_Change
9   9 mmu-miR-100-4373160\n15 m...  YAD-YC  508539.390000
15  9 mmu-miR-100-4373160\n15 m...  YAD-YC  26.816000
17  9 mmu-miR-100-4373160\n15 m...  YAD-YC  728.608000
18  9 mmu-miR-100-4373160\n15 m...  YAD-YC  11483029.706000

'upregulated'是数据帧的一个子集，我尝试使用以下方法对其进行可视化：

g = sns.FacetGrid(upregulated, col='Comparison', sharex=True, sharey=True,     size=0.75, aspect=12./8, despine=True, margin_titles=True)
g.map(sns.pointplot, 'mir_Names', 'Fold_Change', data=upregulated)

**

但是它给了我错误，我找不到任何解决方案：

**

ValueError                                Traceback (most recent call last) <ipython-input-180-a1cf1b282869> in <module>()
      1 g = sns.FacetGrid(upregulated, col='Comparison', sharex=True, sharey=True, size=0.75, aspect=12./8, despine=True, margin_titles=True)
----> 2 g.map(sns.pointplot, 'mir_Names', 'Fold_Change', data=upregulated) #maybe with .count

c:\pyzo2014a\lib\site-packages\seaborn\axisgrid.py in map(self, func,
*args, **kwargs)
    446 
    447         # Finalize the annotations and layout
--> 448         self._finalize_grid(args[:2])
    449 
    450         return self

c:\pyzo2014a\lib\site-packages\seaborn\axisgrid.py in
_finalize_grid(self, axlabels)
    537         self.set_axis_labels(*axlabels)
    538         self.set_titles()
--> 539         self.fig.tight_layout()
    540 
    541     def facet_axis(self, row_i, col_j):

c:\pyzo2014a\lib\site-packages\matplotlib\figure.py in tight_layout(self, renderer, pad, h_pad, w_pad, rect)    1663          rect=rect)    1664 
-> 1665         self.subplots_adjust(**kwargs)    1666     1667 

c:\pyzo2014a\lib\site-packages\matplotlib\figure.py in subplots_adjust(self, *args, **kwargs)    1520     1521         """
-> 1522         self.subplotpars.update(*args, **kwargs)    1523         for ax in self.axes:    1524             if not isinstance(ax, SubplotBase):

c:\pyzo2014a\lib\site-packages\matplotlib\figure.py in update(self, left, bottom, right, top, wspace, hspace)
    223             if self.bottom >= self.top:
    224                 reset()
--> 225                 raise ValueError('bottom cannot be >= top')
    226 
    227     def _update_this(self, s, val):

**ValueError: bottom cannot be >= top**

导致此错误的原因是什么？

尝试创建点图的facetgrid时出错

0 个答案: