X[i, :, :] = X_data.iloc[row : row + 24]

时间: 2024-01-18 19:02:53 浏览: 25
This code assigns a 3-dimensional array to the variable X, where the first dimension represents the rows, the second dimension represents the columns, and the third dimension represents the depth (or channels). The ":" operator is used to select all rows in the first dimension, while the second and third dimensions are selected using the indices 0 and 1 respectively. The array is filled with the values of a slice of a pandas DataFrame called X_data, which starts at the index "row" and goes up to (but not including) the index "row + 24" in the first dimension. This means that the slice includes 24 consecutive rows of the DataFrame, starting from the row specified by the "row" variable. Overall, this code is likely part of a loop that iterates over different values of "row" to create multiple 3-dimensional arrays from different slices of the X_data DataFrame.

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import pandas as pd from PyQt5.QtWidgets import QApplication, QTableView, QMainWindow, QVBoxLayout, QWidget class ExcelViewer(QMainWindow): def __init__(self, file_path): super().__init__() # 读取 Excel 文件并将其转换为 pandas DataFrame 对象 self.df = pd.read_excel(file_path) # 创建 QTableView 组件并将其设置为中心窗口部件 self.table_view = QTableView() self.setCentralWidget(self.table_view) # 将 DataFrame 数据设置为表格模型并在 QTableView 中显示 model = pdTableModel(self.df) self.table_view.setModel(model) class pdTableModel(QtCore.QAbstractTableModel): def __init__(self, data): super().__init__() self._data = data def data(self, index, role): if role == QtCore.Qt.DisplayRole: return str(self._data.iloc[index.row(), index.column()]) def rowCount(self, index): return self._data.shape[0] def columnCount(self, index): return self._data.shape[1] if __name__ == '__main__': app = QApplication([]) excel_viewer = ExcelViewer('example.xlsx') excel_viewer.show() app.exec_()帮我修改成按查询按钮显示Excel

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import pandas as pd import math as mt import numpy as np from sklearn.model_selection import train_test_split from Recommenders import SVDRecommender triplet_dataset_sub_song_merged = triplet_dataset_sub_song_mergedpd triplet_dataset_sub_song_merged_sum_df = triplet_dataset_sub_song_merged[['user','listen_count']].groupby('user').sum().reset_index() triplet_dataset_sub_song_merged_sum_df.rename(columns={'listen_count':'total_listen_count'},inplace=True) triplet_dataset_sub_song_merged = pd.merge(triplet_dataset_sub_song_merged,triplet_dataset_sub_song_merged_sum_df) triplet_dataset_sub_song_merged['fractional_play_count'] = triplet_dataset_sub_song_merged['listen_count']/triplet_dataset_sub_song_merged small_set = triplet_dataset_sub_song_merged user_codes = small_set.user.drop_duplicates().reset_index() song_codes = small_set.song.drop_duplicates().reset_index() user_codes.rename(columns={'index':'user_index'}, inplace=True) song_codes.rename(columns={'index':'song_index'}, inplace=True) song_codes['so_index_value'] = list(song_codes.index) user_codes['us_index_value'] = list(user_codes.index) small_set = pd.merge(small_set,song_codes,how='left') small_set = pd.merge(small_set,user_codes,how='left') mat_candidate = small_set[['us_index_value','so_index_value','fractional_play_count']] data_array = mat_candidate.fractional_play_count.values row_array = mat_candidate.us_index_value.values col_array = mat_candidate.so_index_value.values data_sparse = coo_matrix((data_array, (row_array, col_array)),dtype=float) K=50 urm = data_sparse MAX_PID = urm.shape[1] MAX_UID = urm.shape[0] recommender = SVDRecommender(K) U, S, Vt = recommender.fit(urm) Compute recommendations for test users uTest = [1,6,7,8,23] uTest_recommended_items = recommender.recommend(uTest, urm, 10) Output recommended songs in a dataframe recommendations = pd.DataFrame(columns=['user','song', 'score','rank']) for user in uTest: rank = 1 for song_index in uTest_recommended_items[user, 0:10]: song = small_set.loc[small_set['so_index_value'] == song_index].iloc[0] # Get song details recommendations = recommendations.append({'user': user, 'song': song['title'], 'score': song['fractional_play_count'], 'rank': rank}, ignore_index=True) rank += 1 display(recommendations)这段代码报错了，为什么？给出修改后的 代码

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data_sparse = coo_matrix((data_array, (row_array, col_array)),dtype=float) # Compute SVD using our custom package K=50 # number of factors urm = data_sparse MAX_PID = urm.shape[1] MAX_UID = urm....

data2 = pd.read_excel(file2, sheet_name=0, keep_default_na=False) sheet = data['方药'] for k in range(row_num): cell1_data = sheet.iloc[k] # 获取单元格的值 cell1_data = str(cell1_data) cell1_data.value() if cell1_data.value not in data2: print(cell1_data, cell1_data.column, cell1_data.value)

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# 遍历数据表的每一行 for i in range(2, data_rows + 1): # 获取数据表中第i行的第1列的值 data_value = data_df.iloc[i - 1, 1] # 在其他信息表中查找data_value对应的值 match = other_df[other_df['PEGA-料號'] == data_value]['儲位'].values # 如果找到了匹配的值，则将其写入数据表的第7列 if len(match) > 0: record_sheet.cell(row=i, column=1).value = match[0]這個代碼對嗎

data_value = data_df.iloc[i - 1, 1] # 在其他信息表中查找data_value对应的值 match = other_df[other_df['PEGA-料號'] == data_value]['儲位'].values # 如果找到了匹配的值，则将其写入数据表的第7列 if ...

data.iloc[2,4] = 0 new_data = data.iloc[:,1:4] new_data0 = data.iloc[:,1:4]

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folder_path = "D:/data_test" dataCol = np.zeros((6, 9)) num_size = 0 for filename in os.listdir(folder_path): num_size +=1 if filename.endswith('.csv'): file_path = os.path.join(folder_path, filename) data = pd.read_csv(file_path) subset = data.iloc[1:7, 1:10] subset = subset.fillna(0) first_row = data.iloc[0, 1:].tolist() first_column = data.iloc[0:, 0].tolist() for i in range(subset.shape[0]): for j in range(subset.shape[1]): value = subset.iloc[i, j] dataCol[i,j] += mass(value,first_row[j],first_column[i],0.25) # 均值 dataCol = dataCol/num_size total_change = np.sum(dataCol) print(dataCol) print(total_change)

这段代码使用了Pandas和Numpy库，实现了读取文件夹中的所有csv文件，将每个文件的第1行和第1列作为每个单元格的权重，计算每个单元格的贡献并将其累加到dataCol数组中。然后，将dataCol数组除以文件数量，得到每个...

import pandas as pd import numpy as np from sklearn.preprocessing import MinMaxScaler from sklearn.model_selection import train_test_split from keras.models import Sequential from keras.layers import Dense # 读取Excel文件 data = pd.read_excel('D://数据1.xlsx', sheet_name='8') # 把数据分成输入和输出 X = data.iloc[:, 0:8].values y = data.iloc[:, 0:8].values # 对输入和输出数据进行归一化 scaler_X = MinMaxScaler(feature_range=(0, 4)) X = scaler_X.fit_transform(X) scaler_y = MinMaxScaler(feature_range=(0, 4)) y = scaler_y.fit_transform(y) # 将数据集分成训练集和测试集 X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.1, random_state=0) # 创建神经网络模型 model = Sequential() model.add(Dense(units=8, input_dim=8, activation='relu')) model.add(Dense(units=64, activation='relu')) model.add(Dense(units=8, activation='relu')) model.add(Dense(units=8, activation='linear')) # 编译模型 model.compile(loss='mean_squared_error', optimizer='sgd') # 训练模型 model.fit(X_train, y_train, epochs=230, batch_size=1000) # 评估模型 score = model.evaluate(X_test, y_test, batch_size=1258) print('Test loss:', score) # 使用训练好的模型进行预测 X_test_scaled = scaler_X.transform(X_test) y_pred = model.predict(X_test_scaled) # 对预测结果进行反归一化 y_pred_int = scaler_y.inverse_transform(y_pred).round().astype(int) # 计算预测的概率 mse = ((y_test - y_pred) ** 2).mean(axis=None) probabilities = 1 / (1 + mse - ((y_pred_int - y_test) ** 2).mean(axis=None)) # 构建带有概率的预测结果 y_pred_prob = pd.DataFrame(y_pred_int, columns=data.columns[:8]) y_pred_prob['Probability'] = probabilities # 过滤掉和小于6或大于24的行 row_sums = np.sum(y_pred, axis=1) y_pred_filtered = y_pred[(row_sums >= 6) & (row_sums <= 6), :] # 去除重复的行 y_pred_filtered = y_pred_filtered.drop_duplicates() # 打印带有概率的预测结果 print('Predicted values with probabilities:') print(y_pred_filtered)显示Traceback (most recent call last): File "D:\pycharm\PyCharm Community Edition 2023.1.1\双色球8分区预测模型.py", line 61, in <module> y_pred_filtered = y_pred_filtered.drop_duplicates() AttributeError: 'numpy.ndarray' object has no attribute 'drop_duplicates'怎么修改

y_pred_filtered = y_pred[(row_sums >= 6) & (row_sums <= 24), :] y_pred_filtered_df = pd.DataFrame(data=y_pred_filtered, columns=data.columns[:8]) y_pred_filtered_df.drop_duplicates(inplace=True) # ...

headers = ["省", "地市（州）", "县（市、区）", "01-房屋及居民家庭财产损失台账", "如何批量处理excel保存到一个新表中02-农林牧渔业损失台账", "03-工矿商贸业损失台账", "04-基础设施损失台账", "05-公共服务损失台账", "06-其他损失台账", "总损失合计"] new_df1 = pd.DataFrame(columns=headers) # 从原始Sheet表格中读取 A5, B5, C5 单元格的数据，分别填充到新DataFrame的“省”，“地市（州）”，“县（市、区）”列下面。 for df1 in dataframes: new_df1 = new_df1.append( pd.Series(df1.iloc[4, :3].tolist() + [None] * (len(headers) - 3), index=headers), ignore_index=True) # 从原始Sheet表格中读取 D列和E列的数据，逐行扫描，如果D列数据在headers列表中出现，就将该行E列的数据填充到对应的表头headers下面。 for df1 in dataframes: for i in range(4, df1.shape[0]): row_data = df1.iloc[i, :] d_col_data = row_data[3] e_col_data = row_data[4] if d_col_data in headers: new_df1.loc[new_df1.shape[0] - 1, d_col_data] = e_col_data

这是一个Python的代码段，使用了pandas库创建了一个空的DataFrame表格，表格列名为headers中的内容。该表格可以用来存储各种损失台账信息，包括房屋及居民家庭财产损失、农林牧渔业损失、工矿商贸业损失、基础设施...

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