Handles surveys where metadata is stored in reading-card files:
.lay (column positions), .lbe (English variable labels),
.cde (English value labels), .mvs (missing values), with
optional .lbf / .cdf for French.
Usage
parse_sas_cards(cards_dir, layout_mask = NULL, encoding = "Latin1")
Arguments
- cards_dir
Path to the directory containing the reading-card files.
- layout_mask
Optional string; used to filter when multiple files share
the same extension (e.g. SHS 2017 has separate interview and diary files).
- encoding
Character encoding (e.g. "Latin1", "CP1252").
Value
A list with elements variables
(name, label_en, label_fr, type, missing_low, missing_high),
codes (name, val, label_en, label_fr), and layout
(name, start, end; NULL when no .lay file is found).
Details
The .lay file supports two sub-formats detected automatically:
- Reading-card
Lines like NAME start - end (A)
- SAS input
Lines like @pos NAME \$CHAR6.
