Fitbit Steps Intraday¶
Sensor parameters description for [FITBIT_STEPS_INTRADAY]:
| Key | Description |
|---|---|
[TABLE] |
Database table name or file path where the steps intraday data is stored. The configuration keys in Device Data Source Configuration control whether this parameter is interpreted as table or file. |
The format of the column(s) containing the Fitbit sensor data can be JSON or PLAIN_TEXT. The data in JSON format is obtained directly from the Fitbit API. We support PLAIN_TEXT in case you already parsed your data and don’t have access to your participants’ Fitbit accounts anymore. If your data is in JSON format then summary and intraday data come packed together.
We provide examples of the input format that RAPIDS expects, note that both examples for JSON and PLAIN_TEXT are tabular and the actual format difference comes in the fitbit_data column (we truncate the JSON example for brevity).
Example of the structure of source data
| device_id | fitbit_data |
|---|---|
| a748ee1a-1d0b-4ae9-9074-279a2b6ba524 | “activities-steps”:[{“dateTime”:”2020-10-07”,”value”:”1775”}],”activities-steps-intraday”:{“dataset”:[{“time”:”00:00:00”,”value”:5},{“time”:”00:01:00”,”value”:3},{“time”:”00:02:00”,”value”:0},…],”datasetInterval”:1,”datasetType”:”minute”}} |
| a748ee1a-1d0b-4ae9-9074-279a2b6ba524 | “activities-steps”:[{“dateTime”:”2020-10-08”,”value”:”3201”}],”activities-steps-intraday”:{“dataset”:[{“time”:”00:00:00”,”value”:14},{“time”:”00:01:00”,”value”:11},{“time”:”00:02:00”,”value”:10},…],”datasetInterval”:1,”datasetType”:”minute”}} |
| a748ee1a-1d0b-4ae9-9074-279a2b6ba524 | “activities-steps”:[{“dateTime”:”2020-10-09”,”value”:”998”}],”activities-steps-intraday”:{“dataset”:[{“time”:”00:00:00”,”value”:0},{“time”:”00:01:00”,”value”:0},{“time”:”00:02:00”,”value”:0},…],”datasetInterval”:1,”datasetType”:”minute”}} |
| device_id | local_date_time | steps |
|---|---|---|
| a748ee1a-1d0b-4ae9-9074-279a2b6ba524 | 2020-10-07 00:00:00 | 5 |
| a748ee1a-1d0b-4ae9-9074-279a2b6ba524 | 2020-10-07 00:01:00 | 3 |
| a748ee1a-1d0b-4ae9-9074-279a2b6ba524 | 2020-10-07 00:02:00 | 0 |
RAPIDS provider¶
Available time segments
- Available for all time segments
File Sequence
- data/raw/{pid}/fitbit_steps_intraday_raw.csv
- data/raw/{pid}/fitbit_steps_intraday_parsed.csv
- data/raw/{pid}/fitbit_steps_intraday_parsed_with_datetime.csv
- data/interim/{pid}/fitbit_steps_intraday_features/fitbit_steps_intraday_{language}_{provider_key}.csv
- data/processed/features/{pid}/fitbit_steps_intraday.csv
Parameters description for [FITBIT_STEPS_INTRADAY][PROVIDERS][RAPIDS]:
| Key | Description |
|---|---|
[COMPUTE] |
Set to True to extract FITBIT_STEPS_INTRADAY features from the RAPIDS provider |
[FEATURES] |
Features to be computed from steps intraday data, see table below |
[THRESHOLD_ACTIVE_BOUT] |
Every minute with Fitbit steps data wil be labelled as sedentary if its step count is below this threshold, otherwise, active. |
[INCLUDE_ZERO_STEP_ROWS] |
Whether or not to include time segments with a 0 step count during the whole day. |
Features description for [FITBIT_STEPS_INTRADAY][PROVIDERS][RAPIDS]:
| Feature | Units | Description |
|---|---|---|
| sumsteps | steps | The total step count during a time segment. |
| maxsteps | steps | The maximum step count during a time segment. |
| minsteps | steps | The minimum step count during a time segment. |
| avgsteps | steps | The average step count during a time segment. |
| stdsteps | steps | The standard deviation of step count during a time segment. |
| countepisodesedentarybout | bouts | Number of sedentary bouts during a time segment. |
| sumdurationsedentarybout | minutes | Total duration of all sedentary bouts during a time segment. |
| maxdurationsedentarybout | minutes | The maximum duration of any sedentary bout during a time segment. |
| mindurationsedentarybout | minutes | The minimum duration of any sedentary bout during a time segment. |
| avgdurationsedentarybout | minutes | The average duration of sedentary bouts during a time segment. |
| stddurationsedentarybout | minutes | The standard deviation of the duration of sedentary bouts during a time segment. |
| countepisodeactivebout | bouts | Number of active bouts during a time segment. |
| sumdurationactivebout | minutes | Total duration of all active bouts during a time segment. |
| maxdurationactivebout | minutes | The maximum duration of any active bout during a time segment. |
| mindurationactivebout | minutes | The minimum duration of any active bout during a time segment. |
| avgdurationactivebout | minutes | The average duration of active bouts during a time segment. |
| stddurationactivebout | minutes | The standard deviation of the duration of active bouts during a time segment. |
Assumptions/Observations
- Active and sedentary bouts. If the step count per minute is smaller than
THRESHOLD_ACTIVE_BOUT(default value is 10), that minute is labelled as sedentary, otherwise, is labelled as active. Active and sedentary bouts are periods of consecutive minutes labelled asactiveorsedentary.