QQ - How do I get detailed statistics for continuous data fields?
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QQ - How do I get detailed statistics for continuous data fields?
- 1 Minute to read
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There are multiple ways of accessing statistical data in DataJet:
- Analytics | Statistics
- Analytics | Multi-field Statistics
- Database Tree | Right-Click | Statistics
- Analytics | Data Audit, select field (note: reduced basic stats for continuous fields)
Basic Statistics are available for all numeric fields:
Detailed statistics are available for all discrete numeric fields:
To obtain detailed statistics for continuous numeric fields, the following options are available:
- If Data Size/Cardinality allows, enhance the field to change it from Continuous to Discrete
- Use the Engineering | Functions | String | CTOD function to create a discrete sample field
- TODO: Sample Option for continuous fields
Enhance Field
- Engineering | Enhance Field
- TODO: What are the rules for enhancing a field?
CTOD (Continuous to Discrete), A (LMath), A (DMath)
- Drag the table that contains the field into the HotBar
- Right-Click the DataSet object in the HotBar and choose Function | Random (Note - any sampling function can be used - see HotBar - Functions for a detailed overview of sampling options)
- Enter a value less than the discrete threshold (Between 250,000 and 1,000,000 depending on Data Type) and choose OK - a sample dataset will be created.
- In the Database tree, select the field, Right-Click and choose one of the following:
- Engineering | Function | String | CTOD for STRING fields (filter of up to 1 million rows)
- Engineering | Function | LMath | A for INTEGER fields (filter of up to 250,000 rows)
- Engineering | Function | DMath | A for DOUBLE fields (filter of up to 250,000 rows)
- Drag the Filter from the HotBar into the Filter section of the Engineering Dialog
- Give the new field a suitable name (e.g., smp_Field1). Be sure that the name clearly marks the field as a sampled field.
- The sampled field can now be used in the Statistics, Multi-Field Statistics and Data Audit reports to access detailed statistical information
Sample Continuous
TODO: Coming Soon
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