Function reference • retroharmonize

All functions
`as_factor()`	Convert labelled_spss_survey vector To Factor
`as_labelled_spss_survey()`	Labelled to labelled_spss_survey
`collect_val_labels()` `collect_na_labels()`	Collect labels from metadata file
`concatenate()`	Concatenate haven_labelled_spss vectors
`document_survey_item()`	Document survey item harmonization
`document_waves()`	Document survey lists
`harmonize_na_values()`	Harmonize na_values in haven_labelled_spss
`harmonize_values()`	Harmonize the values and labels of labelled vectors
`harmonize_waves()`	Harmonize waves
`labelled_spss_survey()` `as_character()` `is.labelled_spss_survey()` `as_numeric()`	Labelled vectors for multiple SPSS surveys
`label_normalize()` `var_label_normalize()` `val_label_normalize()`	Normalize value and variable labels
`merge_waves()`	Merge waves
`metadata_create()`	Create a metadata table
`na_range_to_values()` `is.na_range_to_values()`	Harmonize user-defined missing value ranges
`pull_survey()`	Pull a survey from a survey list
`read_rds()`	Read survey from rds file
`read_spss()`	Read SPSS (`.sav`, `.zsav`, `.por`) files. Write `.sav` and `.zsav` files.
`read_surveys()`	Read Survey Files Import surveys into a list. Adds filename as a constant to each element of the list.
`retrohamonize`	retroharmonize: Retrospective harmonization of survey data files
`subset_save_surveys()`	Subset and Save Surveys
`survey()` `is.survey()`	Survey data frame

Reference