lpr_extract_notes: Extract Notes from AmericasBarometer Attributes

In lapop: Processing, Visualizing, and Labeling Americas Barometer Data

Extract Notes from AmericasBarometer Attributes

Description

Extracts notes stored in a dataset's attributes and organizes them into a tidy data frame. This function is particularly useful for processing Stata datasets imported into R that contain variable notes in their attributes.

Usage

lpr_extract_notes(data)

Arguments

data	A dataset (data frame) containing "expansion.fields" in its attributes.

Details

This function processes the attributes of a dataset to extract notes that are typically stored in a specific format. It skips any notes associated with "_dta" (dataset-level notes) and only returns variable-specific notes. The function expects the notes to be organized as a list where each element contains exactly three components: variable name, note ID, and note value.

Value

A data frame with three columns:

variable_name

Name of the variable the note belongs to

note_id

Identifier for the note

note_value

The actual note text

Examples

require(lapop); data(bra23)

# Extract the notes
notesBRA23 <- lpr_extract_notes(bra23)
tail(notesBRA23[notesBRA23$variable_name=="ing4",]) # for ing4 variable

lapop documentation built on April 30, 2026, 1:07 a.m.