这段代码是什么意思?
def load_and_process_data():
“””加载并预处理数据”””
# 读取数据
df = pd.read_excel(FILE_PATH)
# 分离特征和标签
y = df.iloc[:, LABEL_COL].values
X = df.iloc[:, 1:].values
# 标准化特征
scaler = StandardScaler()
X_scaled = scaler.fit_transform(X)
# 转换为PyTorch张量并移至设备
X_tensor = torch.FloatTensor(X_scaled).to(device)
y_tensor = torch.LongTensor(y).to(device)
return X_tensor, y_tensor
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