pascalresch / alarm

Alarm

Alarm is a R package of a wearable alarming system for abnormal resting heart rates (RHR) based on CuSum statistics using Fitbit smartwatch data.

Dependence

• R (version >= 3.3.0)

• R package: "xts"

• R function file: "online_cusum_alarm_fn.R"

Usage

To set the working directory as "/Alarm/R"

source("online_cusum_alarm_fn.R")

online.alarming.fn(peo.id.1, dir.hr, dir.step, track.par = 12, gap.thres = 14)

--peo.id.1 individual ID

--dir.hr directory of raw heart rate data

--dir.step directory of raw step data

--track.par tracking parameter (default: 12 hours)

--gap.thres missing data gap (default: 14 days)

Output

• reformatted HR data, step data, and smoothed RHR data are saved in subfolder /output/clean

• online result (based on CuSum) and offline result (based on RHR-diff) for each chunk data are saved in subfolder /output/result

• notice that the CuSum alarm cannot run due to lack of enough data for some case is saved in subfolder /output/note

• online alarm figure combined with offline detection figure for each chunk data is saved in subfolder /output/figure

• online summary table, offline summary table, and daily evaluation table for all the data are saved in subfolder /output/table