Signal Data
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Data Description
Various types of signal data has been included in the SICDb dataset. Signal data is saved in data_float_h table, value reference is found in d_references.
Important note: Data stored in data_float_h is aggregated hourly data.
Predefined Fields (RooDataServer)
| Name | Description | Comment | Type |
|---|---|---|---|
| SignalCountHours | Amount of hours where selected signal data is available | O D | |
| SignalAvg | Average signal value of selected signal | O D | |
| SignalMin | Minimum hourly average signal value of selected signal | O D | |
| SignalMax | Maximum hourly average signal value of selected signal | O D | |
| SignalHoursUnderX | Amount of hours, where the average signal value is under X | O D | |
| SignalHoursOverX | Amount of hours, where the average signal value is >= X | O D | |
| SignalHoursBetweenXY | Amount of hours, where the average signal value is >=Min and <Max | O D | |
| SignalStd | Standard deviation of average hourly values of selected signal | O D
|
Contains hourly float data associated with a case. If more (minute) data is available, data was aggregated and the corresponding values are stored in rawdata field. Refer to Deserialize Raw Data for more information. Metavision does, in database, not differentiate between qualitative (i.e. blood pressure) and quantitative (i.e. drainage volume) data, this was done programatically saving the sum instead of average. The field cnt indicates the amount of values aggregated.
| Name | Type | Description | Comment |
|---|---|---|---|
| CaseID | Integer | Case identifier | |
| DataID | Reference | ||
| Offset | Integer | Time in seconds after admission | |
| Val | Float | Value | The unit (if applicable) is found in d_references where data_float_h.DataID is associated to d_references.ReferenceGlobalID |
| cnt | Integer | Amount of values aggregated | |
| rawdata | Blob | List of 60 floats containing raw data | Due to excessive storage needs minute values have been aggregated. |