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Fix Risk Index calculation and add data sanitization #62

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merged 3 commits into from
Aug 30, 2023
Merged

Fix Risk Index calculation and add data sanitization #62

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d83fce6
Fix Risk Index calculation and add data sanitization
yihuicai Jul 25, 2023
f454e16
Parameterized sample rate for risk index caculation; Added UT
yihuicai Aug 23, 2023
d798849
Parameterize window length
yihuicai Aug 23, 2023
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14 changes: 9 additions & 5 deletions simglucose/analysis/report.py
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Original file line number Diff line number Diff line change
Expand Up @@ -93,16 +93,20 @@ def percent_stats(BG, ax=None):


def risk_index_trace(df_BG, visualize=False):
chunk_BG = [df_BG.iloc[i:i + 60, :] for i in range(0, len(df_BG), 60)]
chunk_BG = [df_BG.iloc[i:i + 20, :] for i in range(0, len(df_BG), 20)]
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if len(chunk_BG[-1]) != 20: # Remove the last chunk which is not full
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chunk_BG.pop()

fBG = [
np.mean(1.509 * (np.log(BG[BG > 0])**1.084 - 5.381)) for BG in chunk_BG
1.509 * (np.log(BG[BG > 0]) ** 1.084 - 5.381) for BG in chunk_BG
]

fBG_df = pd.concat(fBG, axis=1).transpose()
rl = [(10 * (fbg * (fbg < 0))**2).mean() for fbg in fBG]
rh = [(10 * (fbg * (fbg > 0))**2).mean() for fbg in fBG]

LBGI = 10 * (fBG_df * (fBG_df < 0))**2
HBGI = 10 * (fBG_df * (fBG_df > 0))**2
LBGI = pd.concat(rl, axis=1).transpose()
HBGI = pd.concat(rh, axis=1).transpose()
RI = LBGI + HBGI

ri_per_hour = pd.concat(
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