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Descarga y cache

cis_download()
Download the CIS longitudinal Parquet file
cis_update()
Update the local CIS longitudinal dataset
cis_path()
Return the local Parquet path
cis_available()
Check whether a valid local CIS copy is available
cis_cache_dir()
Return the cislongitudinal cache directory
cis_clear()
Clear the local CIS cache

Lectura y consulta

cis_read()
Read the CIS longitudinal dataset
cis_open()
Open the local CIS dataset lazily
cis_cols()
List available CIS columns
cis_schema()
Return the CIS schema
cis_studies()
List studies available in the local CIS dataset

Informacion

cis_manifest()
Read the CIS manifest
cis_info()
Show information about the local CIS dataset