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# Empatica Inter Beat Interval
Sensor parameters description for `[EMPATICA_INTER_BEAT_INTERVAL]`:
|Key                              | Description |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------
|`[CONTAINER]`| Name of the CSV file containing inter beat interval data that is compressed inside an Empatica zip file. Since these zip files are created [automatically](https://support.empatica.com/hc/en-us/articles/201608896-Data-export-and-formatting-from-E4-connect-) by Empatica, there is no need to change the value of this attribute.
## DBDP provider
!!! info "Available time segments and platforms"
- Available for all time segments
!!! info "File Sequence"
```bash
- data/raw/{pid}/empatica_inter_beat_interval_raw.csv
- data/raw/{pid}/empatica_inter_beat_interval_with_datetime.csv
- data/interim/{pid}/empatica_inter_beat_interval_features/empatica_inter_beat_interval_{language}_{provider_key}.csv
- data/processed/features/{pid}/empatica_inter_beat_interval.csv
```
Parameters description for `[EMPATICA_INTER_BEAT_INTERVAL][PROVIDERS][DBDP]`:
|Key                              | Description |
|----------------|-----------------------------------------------------------------------------------------------------------------------------------
|`[COMPUTE]` | Set to `True` to extract `EMPATICA_INTER_BEAT_INTERVAL` features from the `DBDP` provider|
|`[FEATURES]` | Features to be computed from inter beat interval intraday data, see table below |
Features description for `[EMPATICA_INTER_BEAT_INTERVAL][PROVIDERS][DBDP]`:
|Feature |Units |Description|
|-------------------------- |-------------- |---------------------------|
|maxibi |seconds |The maximum inter beat interval during a time segment.
|minibi |seconds |The minimum inter beat interval during a time segment.
|avgibi |seconds |The average inter beat interval during a time segment.
|medianibi |seconds |The median of inter beat interval during a time segment.
|modeibi |seconds |The mode of inter beat interval during a time segment.
|stdibi |seconds |The standard deviation of inter beat interval during a time segment.
|diffmaxmodeibi |seconds |The difference between the maximum and mode inter beat interval during a time segment.
|diffminmodeibi |seconds |The difference between the mode and minimum inter beat interval during a time segment.
|entropyibi |nats |Shannons entropy measurement based on inter beat interval during a time segment.
!!! note "Assumptions/Observations"
For more information about IBI read [this](https://support.empatica.com/hc/en-us/articles/360030058011-E4-data-IBI-expected-signal).