# Data Management of Large Hierarchical Data

## Documentation for package ‘eatGADS’ version 1.1.0

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

## Help Pages

applyChangeMeta | Apply Meta Data Changes.
applyChangeMeta.valChanges | Apply Meta Data Changes.
applyChangeMeta.varChanges | Apply Meta Data Changes.
applyLookup | Recode via lookup table.
applyLookup_expandVar | Recode via lookup table into multiple variables.
applyNumCheck | Apply recodes according to a numerical check data.frame.
assimilateValLabels | Assimilate value labels.
autoRecode | Auto recode a variable in a 'GADSdat'.
calculateScale | Calculate a scale.
cbind.GADSdat | Bind two 'GADSdat' objects into a single 'GADSdat' object by columns.
changeMissings | Change missing code.
changeSPSSformat | Change SPSS format.
changeValLabels | Change value labels.
changeVarLabels | Change the variable label.
changeVarNames | Change Variable Names.
check4SPSS | Check 'SPSS' Compliance of Meta Data
checkEmptyValLabels | Check Value Labels
checkFormat | Check and Adjust SPSS Format
checkMissings | Check and Adjust Missing Tags
checkMissingsByValues | Check and Adjust Missing Tags
checkMissingValLabels | Check Value Labels
checkTrendStructure | Checks compatibility of two 'eatGADS' data bases.
checkUniqueness | Check uniqueness of a variable.
checkUniqueness2 | Check uniqueness of a variable.
checkValue | Check for a specific value
checkVarNames | Check names for 'SQLite' column name conventions.
clean_cache | Clean temporary cache.
cloneVariable | Clone a variable.
collapseColumns | Collapse two columns of a lookup table.
collapseMC_Text | Recode a multiple choice variable according to a character variable.
collapseMultiMC_Text | Recode multiple choice variable with multiple variables.
compareGADS | Compare two GADS.
composeVar | Create a composite variable.
convertCase | Modify upper and lower case for strings.
convertCase.GADSdat | Modify upper and lower case for strings.
createGADS | Create an 'eatGADS' data base.
createLookup | Extract values for recoding.
createNumCheck | Create data.frame for specification of numerical plausibility checks.
createVariable | Create a variable.
dummies2char | Transform dummy variables to character variables.
emptyTheseVariables | Set variables to 'NA'.
equalGADS | Test if two 'GADSdat' objects are (nearly) equal
export_tibble | Transform a 'GADSdat' to a 'tibble'
extractData | Extract Data
extractData2 | Extract Data 2
extractDataOld | Extract Data while merging linking errors.
extractGADSdat | Extract single 'GADSdat' from 'all_GADSdat'
extractMeta | Get Meta Data
extractVars | Extract or remove variables from a 'GADSdat'.
fac2dummies | Transform a factor variable to dummy variables.
fac2dummies_complex | Transform a complex factor variable to dummy variables.
fillImputations | Fill imputed values.
fixEncoding | Remove special characters.
getChangeMeta | Extract table for Meta Data Changes.
getGADS | Get data from GADS data base.
getGADS_fast | Get data from GADS data base fast from server directory.
getTrendGADS | Get data for trend reports.
getTrendGADSOld | Get data for trend reports.
import_convertLabel | Import an object imported via 'convertLabel'
import_DF | Import R 'data.frame'
import_raw | Import R data frame with explicit meta data sheets
import_raw2 | Import R data frame with a explicit meta data sheet
import_RDS | Import 'RDS' file
import_spss | Import SPSS data
import_stata | Import 'Stata' data
insertVariable | Reorder a single variable in a 'GADSdat'.
inspectDifferences | Inspect differences in a variable.
inspectMetaDifferences | Inspect meta data differences in a variable.
labelsGADS | Labels from relational 'eatGADS' data base.
matchValues_varLabels | Match regular expressions and variable names.
merge.GADSdat | Merge two 'GADSdat' objects into a single 'GADSdat' object.
mergeLabels | Prepare data and metadata
miss2NA | Recode Missings to 'NA'
multiChar2fac | Transform one or multiple character variables to factor.
namesGADS | Variables names of a GADS.
orderLike | Order the variables in a 'GADSdat'.
pisa | PISA Plus Example Data
recode2NA | Recode values to 'NA'.
recodeGADS | Recode a variable.
recodeNA2missing | Recode 'NAs' to Missing.
recodeString2NA | Recode a string to 'NA'.
relocateVariable | Reorder a single variable in a 'GADSdat'.
remove2NAchar | Shorten multiple text variables while giving NA codes.
removeValLabels | Remove value labels.
removeVars | Extract or remove variables from a 'GADSdat'.
reuseMeta | Use meta data for variables from another 'GADSdat'.
splitGADS | Split 'GADSdat' into hierarchy levels.
stringAsNumeric | Transform string to numeric.
subImputations | Substitute imputed values.
updateMeta | Update meta data.
write_spss | Write a 'GADSdat' object to a file
write_spss2 | Write a 'GADSdat' object to 'txt' and 'SPSS' syntax
write_stata | Write a 'GADSdat' object to a file