# Generating Features for a Cohort

## Documentation for package ‘FeatureExtraction’ version 3.12.0

- DESCRIPTION file.
- User guides, package vignettes and other documentation.
- Package NEWS.

## Help Pages

.createLooCovariateSettings | Get covariate settings
.getDbLooCovariateData | Get covariate information from the database
aggregateCovariates | Aggregate covariate data
computeStandardizedDifference | Compute standardized difference of mean for all covariates.
convertPrespecSettingsToDetailedSettings | Convert prespecified covariate settings into detailed covariate settings
CovariateData | Covariate Data
CovariateData-class | Covariate Data
createAnalysisDetails | Create detailed covariate settings
createCohortAttrCovariateSettings | Create cohort attribute covariate settings
createCohortBasedCovariateSettings | Create settings for covariates based on other cohorts
createCohortBasedTemporalCovariateSettings | Create settings for temporal covariates based on other cohorts
createCovariateSettings | Create covariate settings
createDefaultCovariateSettings | Create default covariate settings
createDefaultTemporalCovariateSettings | Create default covariate settings
createDetailedCovariateSettings | Create detailed covariate settings
createDetailedTemporalCovariateSettings | Create detailed temporal covariate settings
createEmptyCovariateData | Creates an empty covariate data object
createTable1 | Create a table 1
createTable1CovariateSettings | Create covariate settings for a table 1
createTemporalCovariateSettings | Create covariate settings
createTemporalSequenceCovariateSettings | Create covariate settings
filterByCohortDefinitionId | Filter covariates by cohort definition IDs
filterByRowId | Filter covariates by row ID
getDbCohortAttrCovariatesData | Getcovariate information from the database through the cohort_attribute table
getDbCohortBasedCovariatesData | Get covariate information from the database based on other cohorts
getDbCovariateData | Get covariate information from the database
getDbDefaultCovariateData | Get default covariate information from the database
getDefaultTable1Specifications | Get the default table 1 specifications
isAggregatedCovariateData | Check whether covariate data is aggregated
isCovariateData | Check whether an object is a CovariateData object
isTemporalCovariateData | Check whether covariate data is temporal
loadCovariateData | Load the covariate data from a folder
replaceCovariateSettingsCohortSchemaTable | Utility function to set the cohort table & schema on createCohortBasedCovariateSettings with information from the execution settings
saveCovariateData | Save the covariate data to folder
show-method | Covariate Data
summary-method | Covariate Data
tidyCovariateData | Tidy covariate data