Package index • NBDCtools

Create dataset

High-level functions to create datasets

create_dataset() create_dataset_abcd() create_dataset_hbcd(): Create a dataset

Read and join data

Read and join data released in the NBDC Data Hub.

join_tabulated() join_tabulated_abcd() join_tabulated_hbcd(): Join tabulated data

read_dsv_formatted(): Read delimiter (tab/comma) separated values file correctly formatted

Transform data

Transform/format data released in the NBDC Data Hub.

transf_factor(): Convert categorical columns to factor

transf_label(): Add variable/value labels

transf_time_to_hms(): Convert time columns to hms format

transf_value_to_label(): Convert values to labels for categorical variables

transf_value_to_na(): Convert categorical missingness/non-response codes to NA

Filter data

Filter/subset data released in the NBDC Data Hub.

filter_empty_cols(): Filter empty columns

filter_empty_rows(): Filter empty rows

filter_events_abcd(): Filter ABCD events

filter_id_events(): Filter ID/events

Shadow matrices

Work with shadow matrices for data in the NBDC Data Hub.

shadow_bind_data(): Bind the shadow matrix to the data

shadow_replace_binding_missing(): Fix binding resulted missingness in shadow matrices

Metadata

Retrieve metadata (data dictionary, levels table, sessions table, identifier columns) for studies released in the NBDC Data Hub.

get_metadata(): Get metadata

get_dd() get_dd_abcd() get_dd_hbcd(): Get data dictionary

get_levels() get_levels_abcd() get_levels_hbcd(): Get levels table

get_sessions() get_sessions_abcd() get_sessions_hbcd(): Get sessions table

get_id_cols() get_id_cols_abcd() get_id_cols_hbcd(): Get identifier columns

Utility functions

Utility functions for working with data in the NBDC Data Hub.

create_bids_sidecar(): Create BIDS sidecar

convert_names_data(): Convert column names in a data frame

convert_names_file(): Convert column names in a file