sign_test | R Documentation |
Perform a sign test for a paired sample on variables of a data set. The output is printed as a LaTeX table that mimics the look of SPSS output.
sign_test(data, variables, exact = FALSE) ## S3 method for class 'sign_test_SPSS' to_SPSS( object, statistics = c("test", "frequencies"), version = r2spss_options$get("version"), ... ) ## S3 method for class 'sign_test_SPSS' print( x, statistics = c("frequencies", "test"), version = r2spss_options$get("version"), ... ) signTest(data, variables, exact = FALSE)
data |
a data frame containing the variables. |
variables |
a character vector specifying two numeric variables containing the paired observations. |
exact |
a logical indicating whether or not to include the exact p-value using the binomial distribution. Note that the p-value using the normal approximation is always reported. |
object, x |
an object of class |
statistics |
a character string or vector specifying which SPSS tables
to produce. Available options are |
version |
a character string specifying whether the table should
mimic the content and look of recent SPSS versions ( |
... |
additional arguments to be passed down to
|
The print
method first calls the to_SPSS
method followed
by to_latex
. Further customization can be done by calling
those two functions separately, and modifying the object returned by
to_SPSS
.
An object of class "sign_test_SPSS"
with the following
components:
statistics
a data frame containing information on the number of observations with negative and positive differences.
asymptotic
a list containing the results of the test using the normal approximation.
exact
if requested, a numeric vector containing the exact two-sided p-value, one-sided p-value, and point probability using the binomial distribution.
variables
a character vector containing the names of the two numeric variables with the paired observations.
n
an integer giving the number of observations.
The to_SPSS
method returns an object of class "SPSS_table"
which contains all relevant information in the required format to produce
the LaTeX table. See to_latex
for possible components and
how to further customize the LaTeX table based on the returned object.
The print
method produces a LaTeX table that mimics the look of SPSS
output.
LaTeX tables that mimic recent versions of SPSS (version = "modern"
)
may require several LaTeX compilations to be displayed correctly.
Andreas Alfons
# load data data("Exams") # test whether grades differ between the # regular exam and the resit sign_test(Exams, c("Regular", "Resit"))
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