这是针对pulse-transit-time的软件包
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@@ -66,7 +66,6 @@ def processing():
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# 加载原始PPG信号
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signal = load_data(data_path = data_path, fs=fs_ppg, use_tk=False)
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signal.v = -signal.v[:, 3] # 可用-1将信号取反便于查看,后面是列的索引位置(信道),可调整
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# 创建时间向量
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@@ -88,6 +87,7 @@ def processing():
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fiducials_df = pd.DataFrame(fiducials)
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# 提取行的数据(注意:Pandas的索引是从0开始的)
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rows_to_extract = fiducials_df.iloc[1:-1] # 提取第1到最后1行
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# 归一化
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signal.ppg = normalize(signal.ppg)
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signal.ppg = np.array(signal.ppg, dtype=np.float64) # 强制转换
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