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fit & transform ๊ณผ fit_transform์ ์ฐจ์ด๊ฐ ๋ฌด์์ธ๊ฐ์?
์์ธํ๊ฒ ์ค๋ช ํด์ฃผ์ ์ ์ดํด๊ฐ ์ ๋์์ต๋๋ค. ๊ฐ์ฌํฉ๋๋ค!
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TypeError: Singleton array array(30) cannot be considered a valid collection.
์ฐ์ dask ๋ผ๋ ๊ฒ์ด ์๋ฌ๋ฉ์์ง์ ์์ง๋ง ์ ์๋์ฝ๋ค ์ค์นํ๊ฒฝ์์ ๋ฐ๊ฒฌํ ์ ์๋๋ผ๊ตฌ์. ํน์๋ ํด์ ์์ (์ต์ด) ํ๊ฒฝ์์ ์ฒซ ์ฝ๋(๋ฌธ์ ๊ฐ ์๋ค๊ณ ๋ง์๋๋ ธ๋ ์ฝ๋)๋ฅผ ์คํ์ํค๋ ์ ์ ์๋๋ฉ๋๋ค. ๋ค์ํ ํด๊ฒฐ์ฑ ์ ์ฃผ์ ๋๋ถ์ ๋ฌธ์ ๊ฐ ์ ํด๊ฒฐ๋์ต๋๋ค. ์ ๋ง ๊ฐ์ฌํฉ๋๋ค!!
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TypeError: Singleton array array(30) cannot be considered a valid collection.
์๋ ํ์ธ์, ํฌ๋ฆฌ์ค๋ง์ค๋ ์ ๋ณด๋ด์ จ๋์? ๋ต๋ณ ๋น ๋ฅด๊ฒ ์ฃผ์ ์ ์ ๋ง ๊ฐ์ฌ๋๋ฆฝ๋๋ค. ์ฐ์ ๋ง์ํด์ฃผ์ ๋๋ก ์ฌ๋ถํ ํ๊ณ ์๋ก ์ฃผ์ ์ฝ๋๋ง ๋ ๋ฆฝ์ ์ผ๋ก ์คํ์์ผ๋ดค์ผ๋ ์ฌ์ ํ ๋์ผํ ์๋ฌ๊ฐ ๋ฐ์ํฉ๋๋ค. ์๋๋ ์๋ฌ ์ฝ๋ ์ ๋ฌธ์ ๋๋ค. ============================================================= TypeError Traceback (most recent call last) in 34 # ํ์ดํผ ํ๋ผ๋ฏธํฐ ํ ์คํธ์ ์ํ์๋๋ฅผ ํฅ์ ์ํค๊ธฐ ์ํด cv ๋ฅผ ์ง์ ํ์ง ์์ต๋๋ค. 35 gridcv = GridSearchCV(lgbm_clf, param_grid=params) ---> 36 gridcv.fit(X_train, y_train, early_stopping_rounds=30, eval_metric="auc",eval_set=[(X_train, y_train), (X_test, y_test)]) 37 38 print('GridSearchCV ์ต์ ํ๋ผ๋ฏธํฐ:', gridcv.best_params_) ~\Anaconda3\envs\tf\lib\site-packages\sklearn\model_selection\_search.py in fit(self, X, y, groups, **fit_params) 650 X, y, groups = indexable(X, y, groups) 651 # make sure fit_params are sliceable --> 652 fit_params_values = indexable(*fit_params.values()) 653 fit_params = dict(zip(fit_params.keys(), fit_params_values)) 654 ~\Anaconda3\envs\tf\lib\site-packages\sklearn\utils\validation.py in indexable(*iterables) 235 else: 236 result.append(np.array(X)) --> 237 check_consistent_length(*result) 238 return result 239 ~\Anaconda3\envs\tf\lib\site-packages\sklearn\utils\validation.py in check_consistent_length(*arrays) 206 """ 207 --> 208 lengths = [_num_samples(X) for X in arrays if X is not None] 209 uniques = np.unique(lengths) 210 if len(uniques) > 1: ~\Anaconda3\envs\tf\lib\site-packages\sklearn\utils\validation.py in (.0) 206 """ 207 --> 208 lengths = [_num_samples(X) for X in arrays if X is not None] 209 uniques = np.unique(lengths) 210 if len(uniques) > 1: ~\Anaconda3\envs\tf\lib\site-packages\sklearn\utils\validation.py in _num_samples(x) 150 if len(x.shape) == 0: 151 raise TypeError("Singleton array %r cannot be considered" --> 152 " a valid collection." % x) 153 # Check that shape is returning an integer or default to len 154 # Dask dataframes may not return numeric shape[0] value TypeError: Singleton array array(30) cannot be considered a valid collection.
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