使用Matplotlib X_train.shape绘图时出错,图形给出(1343,1)。这是一个 Dataframe
len(y_pred_baseline)是1343。它是一个数组
我用的代码是
plt.plot(X_train, y_pred_baseline, color = "orange", label = "Baseline Model")
我收到以下错误消息:
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
File /opt/conda/lib/python3.9/site-packages/pandas/core/indexes/base.py:3629, in Index.get_loc(self, key, method, tolerance)
3628 try:
-> 3629 return self._engine.get_loc(casted_key)
3630 except KeyError as err:
File /opt/conda/lib/python3.9/site-packages/pandas/_libs/index.pyx:136, in pandas._libs.index.IndexEngine.get_loc()
File /opt/conda/lib/python3.9/site-packages/pandas/_libs/index.pyx:142, in pandas._libs.index.IndexEngine.get_loc()
TypeError: '(slice(None, None, None), None)' is an invalid key
During handling of the above exception, another exception occurred:
InvalidIndexError Traceback (most recent call last)
Cell In [148], line 1
----> 1 plt.plot(X_train, y_pred_baseline, color = "orange", label = "Baseline Model")
2 plt.scatter(X_train, y_train)
3 plt.xlabel("Area [sq meters]")
File /opt/conda/lib/python3.9/site-packages/matplotlib/pyplot.py:3019, in plot(scalex, scaley, data, *args, **kwargs)
3017 @_copy_docstring_and_deprecators(Axes.plot)
3018 def plot(*args, scalex=True, scaley=True, data=None, **kwargs):
-> 3019 return gca().plot(
3020 *args, scalex=scalex, scaley=scaley,
3021 **({"data": data} if data is not None else {}), **kwargs)
File /opt/conda/lib/python3.9/site-packages/matplotlib/axes/_axes.py:1605, in Axes.plot(self, scalex, scaley, data, *args, **kwargs)
1363 """
1364 Plot y versus x as lines and/or markers.
1365
(...)
1602 (``'green'``) or hex strings (``'#008000'``).
1603 """
1604 kwargs = cbook.normalize_kwargs(kwargs, mlines.Line2D)
-> 1605 lines = [*self._get_lines(*args, data=data, **kwargs)]
1606 for line in lines:
1607 self.add_line(line)
File /opt/conda/lib/python3.9/site-packages/matplotlib/axes/_base.py:315, in _process_plot_var_args.__call__(self, data, *args, **kwargs)
313 this += args[0],
314 args = args[1:]
--> 315 yield from self._plot_args(this, kwargs)
File /opt/conda/lib/python3.9/site-packages/matplotlib/axes/_base.py:490, in _process_plot_var_args._plot_args(self, tup, kwargs, return_kwargs)
487 kw[prop_name] = val
489 if len(xy) == 2:
--> 490 x = _check_1d(xy[0])
491 y = _check_1d(xy[1])
492 else:
File /opt/conda/lib/python3.9/site-packages/matplotlib/cbook/__init__.py:1362, in _check_1d(x)
1356 with warnings.catch_warnings(record=True) as w:
1357 warnings.filterwarnings(
1358 "always",
1359 category=Warning,
1360 message='Support for multi-dimensional indexing')
-> 1362 ndim = x[:, None].ndim
1363 # we have definitely hit a pandas index or series object
1364 # cast to a numpy array.
1365 if len(w) > 0:
File /opt/conda/lib/python3.9/site-packages/pandas/core/frame.py:3505, in DataFrame.__getitem__(self, key)
3503 if self.columns.nlevels > 1:
3504 return self._getitem_multilevel(key)
-> 3505 indexer = self.columns.get_loc(key)
3506 if is_integer(indexer):
3507 indexer = [indexer]
File /opt/conda/lib/python3.9/site-packages/pandas/core/indexes/base.py:3636, in Index.get_loc(self, key, method, tolerance)
3631 raise KeyError(key) from err
3632 except TypeError:
3633 # If we have a listlike key, _check_indexing_error will raise
3634 # InvalidIndexError. Otherwise we fall through and re-raise
3635 # the TypeError.
-> 3636 self._check_indexing_error(key)
3637 raise
3639 # GH#42269
File /opt/conda/lib/python3.9/site-packages/pandas/core/indexes/base.py:5651, in Index._check_indexing_error(self, key)
5647 def _check_indexing_error(self, key):
5648 if not is_scalar(key):
5649 # if key is not a scalar, directly raise an error (the code below
5650 # would convert to numpy arrays and raise later any way) - GH29926
-> 5651 raise InvalidIndexError(key)
InvalidIndexError: (slice(None, None, None), None)
有人知道它出了什么问题吗?
1条答案
按热度按时间ego6inou1#
请插入 *.py文件中的代码,而不是终端的调试信息。