#color_map = plt.cm.get_cmap('coolwarm')
color_map = matplotlib.colormaps['coolwarm']
scatter_plot = plt.scatter(tsne_results[:, 0],
tsne_results[:, 1],
c=selected_class_ids,
cmap=color_map)
plt.colorbar(scatter_plot)
plt.show()
# To save the plot in a high definition format i.e. PDF, uncomment the following line:
#plt.savefig('results/' + str(ADD_NAME_HERE)+'.pdf', format='pdf', dpi=1000)
ValueError Traceback (most recent call last)
File ~/.local/lib/python3.8/site-packages/matplotlib/axes/_axes.py:4439, in Axes._parse_scatter_color_args(c, edgecolors, kwargs, xsize, get_next_color_func)
4438 try: # Is 'c' acceptable as PathCollection facecolors?
-> 4439 colors = mcolors.to_rgba_array(c)
4440 except (TypeError, ValueError) as err:
File ~/.local/lib/python3.8/site-packages/matplotlib/colors.py:487, in to_rgba_array(c, alpha)
486 else:
--> 487 rgba = np.array([to_rgba(cc) for cc in c])
489 if alpha is not None:
File ~/.local/lib/python3.8/site-packages/matplotlib/colors.py:487, in <listcomp>(.0)
486 else:
--> 487 rgba = np.array([to_rgba(cc) for cc in c])
489 if alpha is not None:
File ~/.local/lib/python3.8/site-packages/matplotlib/colors.py:299, in to_rgba(c, alpha)
298 if rgba is None: # Suppress exception chaining of cache lookup failure.
--> 299 rgba = _to_rgba_no_colorcycle(c, alpha)
300 try:
File ~/.local/lib/python3.8/site-packages/matplotlib/colors.py:381, in _to_rgba_no_colorcycle(c, alpha)
380 if not np.iterable(c):
--> 381 raise ValueError(f"Invalid RGBA argument: {orig_c!r}")
382 if len(c) not in [3, 4]:
ValueError: Invalid RGBA argument: 0.0
The above exception was the direct cause of the following exception:
ValueError Traceback (most recent call last)
Cell In[62], line 3
1 #color_map = plt.cm.get_cmap('coolwarm')
2 color_map = matplotlib.colormaps['coolwarm']
----> 3 scatter_plot = plt.scatter(tsne_results[:, 0],
4 tsne_results[:, 1],
5 c=selected_class_ids,
6 cmap=color_map)
7 plt.colorbar(scatter_plot)
8 plt.show()
File ~/.local/lib/python3.8/site-packages/matplotlib/pyplot.py:2862, in scatter(x, y, s, c, marker, cmap, norm, vmin, vmax, alpha, linewidths, edgecolors, plotnonfinite, data, **kwargs)
2857 @_copy_docstring_and_deprecators(Axes.scatter)
2858 def scatter(
2859 x, y, s=None, c=None, marker=None, cmap=None, norm=None,
2860 vmin=None, vmax=None, alpha=None, linewidths=None, *,
2861 edgecolors=None, plotnonfinite=False, data=None, **kwargs):
-> 2862 __ret = gca().scatter(
2863 x, y, s=s, c=c, marker=marker, cmap=cmap, norm=norm,
2864 vmin=vmin, vmax=vmax, alpha=alpha, linewidths=linewidths,
2865 edgecolors=edgecolors, plotnonfinite=plotnonfinite,
2866 **({"data": data} if data is not None else {}), **kwargs)
2867 sci(__ret)
2868 return __ret
File ~/.local/lib/python3.8/site-packages/matplotlib/__init__.py:1442, in _preprocess_data.<locals>.inner(ax, data, *args, **kwargs)
1439 @functools.wraps(func)
1440 def inner(ax, *args, data=None, **kwargs):
1441 if data is None:
-> 1442 return func(ax, *map(sanitize_sequence, args), **kwargs)
1444 bound = new_sig.bind(ax, *args, **kwargs)
1445 auto_label = (bound.arguments.get(label_namer)
1446 or bound.kwargs.get(label_namer))
File ~/.local/lib/python3.8/site-packages/matplotlib/axes/_axes.py:4602, in Axes.scatter(self, x, y, s, c, marker, cmap, norm, vmin, vmax, alpha, linewidths, edgecolors, plotnonfinite, **kwargs)
4599 if edgecolors is None:
4600 orig_edgecolor = kwargs.get('edgecolor', None)
4601 c, colors, edgecolors = \
-> 4602 self._parse_scatter_color_args(
4603 c, edgecolors, kwargs, x.size,
4604 get_next_color_func=self._get_patches_for_fill.get_next_color)
4606 if plotnonfinite and colors is None:
4607 c = np.ma.masked_invalid(c)
File ~/.local/lib/python3.8/site-packages/matplotlib/axes/_axes.py:4445, in Axes._parse_scatter_color_args(c, edgecolors, kwargs, xsize, get_next_color_func)
4443 else:
4444 if not valid_shape:
-> 4445 raise invalid_shape_exception(c.size, xsize) from err
4446 # Both the mapping *and* the RGBA conversion failed: pretty
4447 # severe failure => one may appreciate a verbose feedback.
4448 raise ValueError(
4449 f"'c' argument must be a color, a sequence of colors, "
4450 f"or a sequence of numbers, not {c!r}") from err
ValueError: 'c' argument has 8677 elements, which is inconsistent with 'x' and 'y' with size 2176.
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