Для этого я запускаю следующий код: р>
Код: Выделить всё
fig, axes = plt.subplots(1,2)
axes[0].scatter(X.iloc[:,0], X.iloc[:,1], c=y)
axes[0].set_xlabel('x1')
axes[0].set_ylabel('x2')
axes[0].set_title('Before PCA')
axes[1].scatter(X_new[:,0], X_new[:,1], c=y)
axes[1].set_xlabel('PC1')
axes[1].set_ylabel('PC2')
axes[1].set_title('After PCA')
plt.show()
Код: Выделить всё
ValueError: RGBA values should be within 0-1 range
Вот полное сообщение об ошибке:
Код: Выделить всё
---------------------------------------------------------------------------
ValueError Traceback (most recent call last)
in
1 fig, axes = plt.subplots(1,2)
----> 2 axes[0].scatter(X.iloc[:,0], X.iloc[:,1], c=y)
3 axes[0].set_xlabel('x1')
4 axes[0].set_ylabel('x2')
5 axes[0].set_title('Before PCA')
~/anaconda3/lib/python3.7/site-packages/matplotlib/__init__.py in inner(ax, data, *args, **kwargs)
1597 def inner(ax, *args, data=None, **kwargs):
1598 if data is None:
-> 1599 return func(ax, *map(sanitize_sequence, args), **kwargs)
1600
1601 bound = new_sig.bind(ax, *args, **kwargs)
~/anaconda3/lib/python3.7/site-packages/matplotlib/axes/_axes.py in scatter(self, x, y, s, c, marker, cmap, norm, vmin, vmax, alpha, linewidths, verts, edgecolors, plotnonfinite, **kwargs)
4495 offsets=offsets,
4496 transOffset=kwargs.pop('transform', self.transData),
-> 4497 alpha=alpha
4498 )
4499 collection.set_transform(mtransforms.IdentityTransform())
~/anaconda3/lib/python3.7/site-packages/matplotlib/collections.py in __init__(self, paths, sizes, **kwargs)
881 """
882
--> 883 Collection.__init__(self, **kwargs)
884 self.set_paths(paths)
885 self.set_sizes(sizes)
~/anaconda3/lib/python3.7/site-packages/matplotlib/collections.py in __init__(self, edgecolors, facecolors, linewidths, linestyles, capstyle, joinstyle, antialiaseds, offsets, transOffset, norm, cmap, pickradius, hatch, urls, offset_position, zorder, **kwargs)
125
126 self._hatch_color = mcolors.to_rgba(mpl.rcParams['hatch.color'])
--> 127 self.set_facecolor(facecolors)
128 self.set_edgecolor(edgecolors)
129 self.set_linewidth(linewidths)
~/anaconda3/lib/python3.7/site-packages/matplotlib/collections.py in set_facecolor(self, c)
676 """
677 self._original_facecolor = c
--> 678 self._set_facecolor(c)
679
680 def get_facecolor(self):
~/anaconda3/lib/python3.7/site-packages/matplotlib/collections.py in _set_facecolor(self, c)
659 except AttributeError:
660 pass
--> 661 self._facecolors = mcolors.to_rgba_array(c, self._alpha)
662 self.stale = True
663
~/anaconda3/lib/python3.7/site-packages/matplotlib/colors.py in to_rgba_array(c, alpha)
277 result[mask] = 0
278 if np.any((result < 0) | (result > 1)):
--> 279 raise ValueError("RGBA values should be within 0-1 range")
280 return result
281 # Handle single values.
ValueError: RGBA values should be within 0-1 range
Подробнее здесь: https://stackoverflow.com/questions/714 ... atter-plot