| t_test {bain} | R Documentation |
This function is a wrapper for the function t.test,
which returns group-specific sample sizes and variances, in addition to the
usual output of t.test.
t_test(x, ...)
x |
An object for which an S3 method of t.test exists (vector or formula). |
... |
arguments passed to |
This wrapper allows users to enjoy the functionality of bain with the familiar interface of the stats-function t.test.
For more documentation, see t.test.
A list with class "t_test" containing the following
components:
statistic |
the value of the t-statistic. |
parameter |
the degrees of freedom for the t-statistic. |
p.value |
the p-value for the test. |
conf.int |
a confidence interval for the mean appropriate to the specified alternative hypothesis. |
estimate |
the estimated mean or difference in means depending on whether it was a one-sample test or a two-sample test. |
null.value |
the specified hypothesized value of the mean or mean difference depending on whether it was a one-sample test or a two-sample test. |
alternative |
a character string describing the alternative hypothesis. |
method |
a character string indicating what type of t-test was performed. |
data.name |
a character string giving the name(s) of the data. |
v |
The variance or group-specific variances. |
n |
The sample size, or group-specific sample size. |
tmp <- t_test(extra ~ group, data = sleep) tmp$n tmp$v tmp2 <- t_test(extra ~ group, data = sleep) tmp2$n tmp2$v tmp <- t_test(extra ~ group, data = sleep, paired = TRUE) tmp$n tmp$v tmp2 <- t_test(extra ~ group, data = sleep, paired = TRUE) tmp2$n tmp2$v t_test(sesamesim$postnumb) tmp <- t_test(sesamesim$prenumb) tmp$n tmp$v tmp2 <- t_test(sesamesim$prenumb) tmp2$n tmp2$v tmp <- t_test(sesamesim$prenumb, sesamesim$postnumb) tmp$n tmp$v tmp2 <- t_test(sesamesim$prenumb, sesamesim$postnumb) tmp2$n tmp2$v tmp <- t_test(sesamesim$prenumb, sesamesim$postnumb, paired = TRUE) tmp$n tmp$v tmp2 <- t_test(sesamesim$prenumb, sesamesim$postnumb, paired = TRUE) tmp2$n tmp2$v