as.surveydata | R Documentation |
Methods for creating surveydata
objects, testing for class, and coercion from other objects.
as.surveydata( x, sep = "_", exclude = "other", ptn = pattern(x), defaultPtn = list(sep = sep, exclude = exclude), renameVarlabels = FALSE ) un_surveydata(x)
x |
Object to coerce to surveydata |
sep |
Separator between question and sub-question names |
exclude |
Excludes from pattern search |
ptn |
A list with two elements, |
defaultPtn |
The default for |
renameVarlabels |
If TRUE, turns variable.labels attribute into a named vector, using |
The functionun_surveydata()
removes the surveydata
class from the object, leaving intact the other classes, e.g. data.frame
or tibble
surveydata-package, is.surveydata()
library(surveydata) # Create surveydata object sdat <- data.frame( id = 1:4, Q1 = c("Yes", "No", "Yes", "Yes"), Q4_1 = c(1, 2, 1, 2), Q4_2 = c(3, 4, 4, 3), Q4_3 = c(5, 5, 6, 6), Q10 = factor(c("Male", "Female", "Female", "Male")), crossbreak = c("A", "A", "B", "B"), weight = c(0.9, 1.1, 0.8, 1.2) ) varlabels(sdat) <- c( "RespID", "Question 1", "Question 4: red", "Question 4: green", "Question 4: blue", "Question 10", "crossbreak", "weight" ) sv <- as.surveydata(sdat, renameVarlabels = TRUE) # Extract specific questions sv[, "Q1"] sv[, "Q4"] # Query attributes varlabels(sv) pattern(sv) # Find unique questions questions(sv) which.q(sv, "Q1") which.q(sv, "Q4") # Find question text question_text(sv, "Q1") question_text(sv, "Q4") question_text_common(sv, "Q4") question_text_unique(sv, "Q4") # 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"])
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.