



import numpy as np

class 			__snake_case   :







							'''simple docstring'''






							def __init__(				self	,	a_=5	,	a_=5		):
											a__					   =		depth
											a__					   =		0
											a__					   =		None
											a__					   =		None
											a__					   =		min_leaf_size
											a__					   =		None


							def _a   (				self	,	a_	,	a_		):
											if labels.ndim != 1:
															print("""Error: Input labels must be one dimensional"""		)

											return np.mean((labels - prediction) ** 2		)


							def _a   (				self	,	a_	,	a_		):
											if x.ndim != 1:
															print("""Error: Input data set must be one dimensional"""		)
															return
											if len(a_		) != len(a_		):
															print("""Error: X and y have different lengths"""		)
															return
											if y.ndim != 1:
															print("""Error: Data set labels must be one dimensional"""		)
															return

											if len(a_		) < 2 * self.min_leaf_size:
															a__					   =		np.mean(a_		)
															return

											if self.depth == 1:
															a__					   =		np.mean(a_		)
															return

											a__					   =		0
											a__					   =		self.mean_squared_error(a_	,	np.mean(a_		)		) * 2
											for i in range(len(a_		)		):
															if len(x[:i]		) < self.min_leaf_size:
																			continue
															elif len(x[i:]		) < self.min_leaf_size:
																			continue
															else:
																			a__					   =		self.mean_squared_error(x[:i]	,	np.mean(y[:i]		)		)
																			a__					   =		self.mean_squared_error(x[i:]	,	np.mean(y[i:]		)		)
																			a__					   =		error_left + error_right
																			if error < min_error:
																							a__					   =		i
																							a__					   =		error

											if best_split != 0:
															a__					   =		x[:best_split]
															a__					   =		y[:best_split]
															a__					   =		x[best_split:]
															a__					   =		y[best_split:]

															a__					   =		x[best_split]
															a__					   =		DecisionTree(
															    depth=self.depth - 1	,	min_leaf_size=self.min_leaf_size		)
															a__					   =		DecisionTree(
															    depth=self.depth - 1	,	min_leaf_size=self.min_leaf_size		)
															self.left.train(a_	,	a_		)
															self.right.train(a_	,	a_		)
											else:
															a__					   =		np.mean(a_		)

											return







							def _a   (				self	,	a_		):
											if self.prediction is not None:
															return self.prediction
											elif self.left or self.right is not None:
															if x >= self.decision_boundary:
																			return self.right.predict(a_		)
															else:
																			return self.left.predict(a_		)
											else:
															print("""Error: Decision tree not yet trained"""		)
															return None




class 			__snake_case   :







							'''simple docstring'''






							@staticmethod
							def _a   (				a_	,	a_		):
											a__					   =		float(0		)
											for label in labels:
															squared_error_sum += (label - prediction) ** 2

											return float(squared_error_sum / labels.size		)




def       A_   (						):

				"""simple docstring"""
				a__					   =		np.arange(-1.0			,		1.0			,		0.0_0_5		)
				a__					   =		np.sin(__a		)

				a__					   =		DecisionTree(depth=10			,		min_leaf_size=10		)
				tree.train(__a			,		__a		)

				a__					   =		(np.random.rand(10		) * 2) - 1
				a__					   =		np.array([tree.predict(__a		) for x in test_cases]		)
				a__					   =		np.mean((predictions - test_cases) ** 2		)

				print("""Test values: """ + str(__a		)		)
				print("""Predictions: """ + str(__a		)		)
				print("""Average error: """ + str(__a		)		)


if __name__ == "__main__":
	main()
	import doctest

	doctest.testmod(name="""mean_squarred_error""", verbose=True)








'''simple docstring'''

from __future__ import annotations

import inspect
import unittest
from typing import List, Tuple

from transformers import ConvNextConfig
from transformers.testing_utils import require_tf, require_vision, slow
from transformers.utils import cached_property, is_tf_available, is_vision_available

from ...test_configuration_common import ConfigTester
from ...test_modeling_tf_common import TFModelTesterMixin, floats_tensor, ids_tensor
from ...test_pipeline_mixin import PipelineTesterMixin


if is_tf_available():
   import tensorflow as tf

   from transformers import TFConvNextForImageClassification, TFConvNextModel


if is_vision_available():
   from PIL import Image

   from transformers import ConvNextImageProcessor





class lowerCamelCase    :







  def __init__(		self  ,  lowercase__  ,  lowercase__=13  ,  lowercase__=32  ,  lowercase__=3  ,  lowercase__=4  ,  lowercase__=[10, 20, 30, 40]  ,  lowercase__=[2, 2, 3, 2]  ,  lowercase__=True  ,  lowercase__=True  ,  lowercase__=37  ,  lowercase__="gelu"  ,  lowercase__=10  ,  lowercase__=0.02  ,  lowercase__=3  ,  lowercase__=None  ,  )		->    Any:






        """simple docstring"""





        _snake_case		:						str         =  parent
        _snake_case		:						Any         =  batch_size
        _snake_case		:						Optional[Any]         =  image_size
        _snake_case		:						List[Any]         =  num_channels
        _snake_case		:						int         =  num_stages
        _snake_case		:						Any         =  hidden_sizes
        _snake_case		:						Dict         =  depths
        _snake_case		:						List[Any]         =  is_training
        _snake_case		:						Union[str, Any]         =  use_labels
        _snake_case		:						Dict         =  intermediate_size
        _snake_case		:						List[str]         =  hidden_act
        _snake_case		:						Optional[int]         =  type_sequence_label_size
        _snake_case		:						str         =  initializer_range
        _snake_case		:						Dict         =  scope







  def 					UpperCAmelCase_					(		self		)		->    List[str]:






        """simple docstring"""





        _snake_case		:						Dict         =  floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size]		)

        _snake_case		:						int         =  None
        if self.use_labels:
              _snake_case		:						Optional[int]         =  ids_tensor([self.batch_size]  ,  self.type_sequence_label_size		)

        _snake_case		:						Union[str, Any]         =  self.get_config()

        return config, pixel_values, labels







  def 					UpperCAmelCase_					(		self		)		->    Union[str, Any]:






        """simple docstring"""





        return ConvNextConfig(
            num_channels=self.num_channels  ,  hidden_sizes=self.hidden_sizes  ,  depths=self.depths  ,  num_stages=self.num_stages  ,  hidden_act=self.hidden_act  ,  is_decoder=lowercase__  ,  initializer_range=self.initializer_range  ,  )







  def 					UpperCAmelCase_					(		self  ,  lowercase__  ,  lowercase__  ,  lowercase__		)		->    int:






        """simple docstring"""





        _snake_case		:						Tuple         =  TFConvNextModel(config=lowercase__		)
        _snake_case		:						Optional[int]         =  model(lowercase__  ,  training=lowercase__		)
        # expected last hidden states: B, C, H // 32, W // 32
        self.parent.assertEqual(
            result.last_hidden_state.shape  ,  (self.batch_size, self.hidden_sizes[-1], self.image_size // 32, self.image_size // 32)  ,  )







  def 					UpperCAmelCase_					(		self  ,  lowercase__  ,  lowercase__  ,  lowercase__		)		->    Optional[Any]:






        """simple docstring"""





        _snake_case		:						int         =  self.type_sequence_label_size
        _snake_case		:						Optional[int]         =  TFConvNextForImageClassification(lowercase__		)
        _snake_case		:						Dict         =  model(lowercase__  ,  labels=lowercase__  ,  training=lowercase__		)
        self.parent.assertEqual(result.logits.shape  ,  (self.batch_size, self.type_sequence_label_size)		)







  def 					UpperCAmelCase_					(		self		)		->    List[str]:






        """simple docstring"""





        _snake_case		:						Union[str, Any]         =  self.prepare_config_and_inputs()
        _snake_case  ,				_snake_case  ,				_snake_case		:						Union[str, Any]         =  config_and_inputs
        _snake_case		:						Optional[Any]         =  {'''pixel_values''': pixel_values}
        return config, inputs_dict





@require_tf
class lowerCamelCase    (a__    ,   a__    ,   unittest.TestCase       ):
  _lowercase	:						str							       =					(TFConvNextModel, TFConvNextForImageClassification) if is_tf_available() else ()
  _lowercase	:						List[str]							       =					(
      {"""feature-extraction""": TFConvNextModel, """image-classification""": TFConvNextForImageClassification}
      if is_tf_available()
      else {}
  )

  _lowercase	:						Optional[Any]							       =					False
  _lowercase	:						str							       =					False
  _lowercase	:						Tuple							       =					False
  _lowercase	:						Union[str, Any]							       =					False
  _lowercase	:						Dict							       =					False







  def 					UpperCAmelCase_					(		self		)		->    Any:






        """simple docstring"""





        _snake_case		:						List[str]         =  TFConvNextModelTester(self		)
        _snake_case		:						Tuple         =  ConfigTester(
            self  ,  config_class=lowercase__  ,  has_text_modality=lowercase__  ,  hidden_size=37  ,  )







  @unittest.skip(reason='''ConvNext does not use inputs_embeds'''		)
  def 					UpperCAmelCase_					(		self		)		->    int:






        """simple docstring"""





        pass







  @unittest.skipIf(
      not is_tf_available() or len(tf.config.list_physical_devices('''GPU'''		)		) == 0  ,  reason='''TF does not support backprop for grouped convolutions on CPU.'''  ,  )
  @slow
  def 					UpperCAmelCase_					(		self		)		->    int:






        """simple docstring"""





        super().test_keras_fit()







  @unittest.skip(reason='''ConvNext does not support input and output embeddings'''		)
  def 					UpperCAmelCase_					(		self		)		->    Any:






        """simple docstring"""





        pass







  def 					UpperCAmelCase_					(		self		)		->    Any:






        """simple docstring"""





        _snake_case  ,				_snake_case		:						Dict         =  self.model_tester.prepare_config_and_inputs_for_common()

        for model_class in self.all_model_classes:
              _snake_case		:						int         =  model_class(lowercase__		)
              _snake_case		:						Dict         =  inspect.signature(model.call		)
              # signature.parameters is an OrderedDict => so arg_names order is deterministic
              _snake_case		:						Optional[int]         =  [*signature.parameters.keys()]

              _snake_case		:						int         =  ['''pixel_values''']
              self.assertListEqual(arg_names[:1]  ,  lowercase__		)







  def 					UpperCAmelCase_					(		self		)		->    str:






        """simple docstring"""





        _snake_case		:						Dict         =  self.model_tester.prepare_config_and_inputs()
        self.model_tester.create_and_check_model(*lowercase__		)







  @unittest.skipIf(
      not is_tf_available() or len(tf.config.list_physical_devices('''GPU'''		)		) == 0  ,  reason='''TF does not support backprop for grouped convolutions on CPU.'''  ,  )
  def 					UpperCAmelCase_					(		self		)		->    Optional[Any]:






        """simple docstring"""





        super().test_dataset_conversion()







  def 					UpperCAmelCase_					(		self		)		->    List[str]:






        """simple docstring"""





        def check_hidden_states_output(lowercase__  ,  lowercase__  ,  lowercase__		):
              _snake_case		:						List[Any]         =  model_class(lowercase__		)

              _snake_case		:						Dict         =  model(**self._prepare_for_class(lowercase__  ,  lowercase__		)		)
              _snake_case		:						str         =  outputs.encoder_hidden_states if config.is_encoder_decoder else outputs.hidden_states

              _snake_case		:						List[Any]         =  self.model_tester.num_stages
              self.assertEqual(len(lowercase__		)  ,  expected_num_stages + 1		)

              # ConvNext's feature maps are of shape (batch_size, num_channels, height, width)
              self.assertListEqual(
                  list(hidden_states[0].shape[-2:]		)  ,  [self.model_tester.image_size // 4, self.model_tester.image_size // 4]  ,  )

        _snake_case  ,				_snake_case		:						Optional[Any]         =  self.model_tester.prepare_config_and_inputs_for_common()

        for model_class in self.all_model_classes:
              _snake_case		:						int         =  True
              check_hidden_states_output(lowercase__  ,  lowercase__  ,  lowercase__		)

              # check that output_hidden_states also work using config
              del inputs_dict["output_hidden_states"]
              _snake_case		:						Any         =  True

              check_hidden_states_output(lowercase__  ,  lowercase__  ,  lowercase__		)







  def 					UpperCAmelCase_					(		self		)		->    Any:






        """simple docstring"""





        _snake_case  ,				_snake_case		:						Dict         =  self.model_tester.prepare_config_and_inputs_for_common()

        def check_equivalence(lowercase__  ,  lowercase__  ,  lowercase__  ,  lowercase__={}		):
              _snake_case		:						Tuple         =  model(lowercase__  ,  return_dict=lowercase__  ,  **lowercase__		)
              _snake_case		:						Any         =  model(lowercase__  ,  return_dict=lowercase__  ,  **lowercase__		).to_tuple()

              def recursive_check(lowercase__  ,  lowercase__		):
                    if isinstance(lowercase__  ,  (List, Tuple)		):
                          for tuple_iterable_value, dict_iterable_value in zip(lowercase__  ,  lowercase__		):
                                recursive_check(lowercase__  ,  lowercase__		)
                    elif tuple_object is None:
                          return
                    else:
                          self.assertTrue(
                              all(tf.equal(lowercase__  ,  lowercase__		)		)  ,  msg=(
                                  '''Tuple and dict output are not equal. Difference:'''
                                  F''' {tf.math.reduce_max(tf.abs(tuple_object - dict_object		)		)}'''
                              )  ,  )

                    recursive_check(lowercase__  ,  lowercase__		)

        for model_class in self.all_model_classes:
              _snake_case		:						Dict         =  model_class(lowercase__		)

              _snake_case		:						Union[str, Any]         =  self._prepare_for_class(lowercase__  ,  lowercase__		)
              _snake_case		:						str         =  self._prepare_for_class(lowercase__  ,  lowercase__		)
              check_equivalence(lowercase__  ,  lowercase__  ,  lowercase__		)

              _snake_case		:						List[Any]         =  self._prepare_for_class(lowercase__  ,  lowercase__  ,  return_labels=lowercase__		)
              _snake_case		:						Any         =  self._prepare_for_class(lowercase__  ,  lowercase__  ,  return_labels=lowercase__		)
              check_equivalence(lowercase__  ,  lowercase__  ,  lowercase__		)

              _snake_case		:						List[str]         =  self._prepare_for_class(lowercase__  ,  lowercase__		)
              _snake_case		:						Union[str, Any]         =  self._prepare_for_class(lowercase__  ,  lowercase__		)
              check_equivalence(lowercase__  ,  lowercase__  ,  lowercase__  ,  {'''output_hidden_states''': True}		)

              _snake_case		:						Optional[int]         =  self._prepare_for_class(lowercase__  ,  lowercase__  ,  return_labels=lowercase__		)
              _snake_case		:						Any         =  self._prepare_for_class(lowercase__  ,  lowercase__  ,  return_labels=lowercase__		)
              check_equivalence(lowercase__  ,  lowercase__  ,  lowercase__  ,  {'''output_hidden_states''': True}		)







  def 					UpperCAmelCase_					(		self		)		->    Union[str, Any]:






        """simple docstring"""





        _snake_case		:						str         =  self.model_tester.prepare_config_and_inputs()
        self.model_tester.create_and_check_for_image_classification(*lowercase__		)







  @slow
  def 					UpperCAmelCase_					(		self		)		->    Optional[Any]:






        """simple docstring"""





        _snake_case		:						List[Any]         =  TFConvNextModel.from_pretrained('''facebook/convnext-tiny-224'''		)
        self.assertIsNotNone(lowercase__		)




def  _a     (				):





      """simple docstring"""



      _snake_case		:						List[str]         =  Image.open('''./tests/fixtures/tests_samples/COCO/000000039769.png'''						)
      return image





@require_tf
@require_vision
class lowerCamelCase    (unittest.TestCase       ):







  @cached_property
  def 					UpperCAmelCase_					(		self		)		->    Optional[int]:






        """simple docstring"""





        return ConvNextImageProcessor.from_pretrained('''facebook/convnext-tiny-224'''		) if is_vision_available() else None







  @slow
  def 					UpperCAmelCase_					(		self		)		->    Any:






        """simple docstring"""





        _snake_case		:						Dict         =  TFConvNextForImageClassification.from_pretrained('''facebook/convnext-tiny-224'''		)

        _snake_case		:						str         =  self.default_image_processor
        _snake_case		:						Optional[int]         =  prepare_img()
        _snake_case		:						str         =  image_processor(images=lowercase__  ,  return_tensors='''tf'''		)

        # forward pass
        _snake_case		:						Union[str, Any]         =  model(**lowercase__		)

        # verify the logits
        _snake_case		:						Union[str, Any]         =  tf.TensorShape((1, 1_000)		)
        self.assertEqual(outputs.logits.shape  ,  lowercase__		)

        _snake_case		:						List[str]         =  tf.constant([-0.0_260, -0.4_739, 0.1_911]		)

        tf.debugging.assert_near(outputs.logits[0, :3]  ,  lowercase__  ,  atol=1E-4		)


