Difference between revisions of "Data Description Data Float h"

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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.


{| class="wikitable"
{| class="wikitable"
|+ Caption text
|+ data_float_h.csv.gz
|-
|-
! Name !! Type !! Description !! Comment
! Name !! Type !! Description !! Comment
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| Offset || Integer|| Time in seconds after admission ||  
| Offset || Integer|| Time in seconds after admission ||  
|-  
|-  
| Val || Float || Value || The unit (if applicable) is found in d_references
| 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 ||  
| cnt || Integer || Amount of values aggregated ||  
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| rawdata || Blob || List of 60 floats containing raw data  || Due to excessive storage needs minute values have been aggregated.  
| rawdata || Blob || List of 60 floats containing raw data  || Due to excessive storage needs minute values have been aggregated.  
|}
|}
<noinclude>== Aggregation Description ==</noinclude>
<includeonly>=== Aggregation Description ===</includeonly>
Most signal data is averaged. The field data_float_h.cnt describes the amount of values aggregated. It is to be expected that the first signal values have less than 60 data points, as it is quite unlikely (1:60) that signal starts on minute 0.
Raw values are saved in field data_float_h.rawdata, being a list of bytes. (IEEE 754 Single(4 bytes), LittleEndian)
<noinclude>
The recommended way to access this data is using our provided software ([[Get Started]]). An example on how to deserialize the raw_data field can be found [[Deserialize Raw Data|here]].
</noinclude>
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.

Latest revision as of 17:27, 3 November 2022

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.

data_float_h.csv.gz
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.
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