questions {surveydata} | R Documentation |
Returns a list of all the unique questions in the surveydata object.
Description
In many survey systems, sub-questions take the form Q1_a, Q1_b, with the main question and sub-question separated by an underscore. This function conveniently returns all of the main questions in a surveydata()
object. It does this by using the pattern()
attribute of the surveydata object.
Usage
questions(x, ptn = pattern(x))
Arguments
x |
Object to coerce to surveydata |
ptn |
A list with two elements, |
Value
numeric vector
See Also
which.q
Other Question functions:
question_text_common()
,
question_text_unique()
,
question_text()
,
split_common_unique()
,
which.q()
Examples
# Basic operations on a surveydata object, illustrated with the example dataset membersurvey
class(membersurvey)
questions(membersurvey)
which.q(membersurvey, "Q1")
which.q(membersurvey, "Q3")
which.q(membersurvey, c("Q1", "Q3"))
question_text(membersurvey, "Q3")
question_text_unique(membersurvey, "Q3")
question_text_common(membersurvey, "Q3")
# Extracting columns from a surveydata object
head(membersurvey[, "Q1"])
head(membersurvey["Q1"])
head(membersurvey[, "Q3"])
head(membersurvey[, c("Q1", "Q3")])
# Note that the result is always a surveydata object, even if only one column is extracted
head(membersurvey[, "id"])
str(membersurvey[, "id"])
[Package surveydata version 0.2.7 Index]