importmatplotlib.pyplotaspltimportnumpyasnpdefplot_1D_histogram_trajectories(data,centers=None,dtrajs=None,max_traj_length=200,ax=None):forn,_trajinenumerate(data):ax.hist(_traj,bins=30,alpha=.33,density=True,color='C{}'.format(n))ylims=ax.get_ylim()xlims=ax.get_xlim()forn,_trajinenumerate(data):ax.plot(_traj[:min(len(_traj),max_traj_length)],np.linspace(*ylims,min(len(_traj),max_traj_length)),alpha=0.6,color='C{}'.format(n),label='traj {}'.format(n))ax.plot(centers[dtrajs[n][:min(len(_traj),max_traj_length)]],np.linspace(*ylims,min(len(_traj),max_traj_length)),'.-',alpha=.6,label='dtraj {}'.format(n),linewidth=.3)ax.annotate('',xy=(0.85*xlims[1],0.7*ylims[1]),xytext=(0.85*xlims[1],0.3*ylims[1]),# FIXME: if one omits this argument, it succeedsarrowprops=dict(),    )ax.text(0.86*xlims[1],0.5*ylims[1],'$x(time)$',ha='left',va='center',rotation=90)ax.legend(loc=2)# FIXME: if only one subfigure is created it succeedsfig,axes=plt.subplots(1,2,figsize=(10,4))data= [np.loadtxt('data.csv')]dtraj=np.loadtxt('dtraj.csv').astype(int)centers=np.loadtxt('centers.csv')plot_1D_histogram_trajectories(data,centers=centers,dtrajs=[dtraj],ax=axes[0])axes[1].plot(x=np.arange(10),y=np.arange(10))fig.tight_layout()

  File "/home/mi/marscher/sources/pyemma_tutorials/notebooks/minimal_example.py", line 34, in <module>    fig.tight_layout()  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/figure.py", line 2374, in tight_layout    pad=pad, h_pad=h_pad, w_pad=w_pad, rect=rect)  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/tight_layout.py", line 366, in get_tight_layout_figure    pad=pad, h_pad=h_pad, w_pad=w_pad)  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/tight_layout.py", line 115, in auto_adjust_subplotpars    tight_bbox_raw = union([ax.get_tightbbox(renderer) for ax in subplots  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/tight_layout.py", line 116, in <listcomp>    if ax.get_visible()])  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/axes/_base.py", line 4396, in get_tightbbox    bbox = a.get_tightbbox(renderer)  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/artist.py", line 271, in get_tightbbox    bbox = self.get_window_extent(renderer)  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/text.py", line 2425, in get_window_extent    bboxes.append(self.arrow_patch.get_window_extent())  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/patches.py", line 548, in get_window_extent    return self.get_path().get_extents(self.get_transform())  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/patches.py", line 4228, in get_path    _path, fillable = self.get_path_in_displaycoord()  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/patches.py", line 4258, in get_path_in_displaycoord    self.get_mutation_aspect())  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/patches.py", line 3218, in __call__    return self.transmute(path, mutation_size, linewidth)  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/patches.py", line 3718, in transmute    tail_width / 2.)  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/bezier.py", line 381, in get_parallels    cos_t2, sin_t2)  File "/srv/public/marscher/miniconda3/envs/nbtut/lib/python3.6/site-packages/matplotlib/bezier.py", line 35, in get_intersection    raise ValueError("Given lines do not intersect. Please verify that "ValueError: Given lines do not intersect. Please verify that the angles are not equal or differ by 180 degrees.