rttestIS | R Documentation |
Robust Independent Samples T-Test
rttestIS( data, deps, group, yuen = TRUE, tr = 0.2, mest = FALSE, method = "mom", yuenbt = FALSE, nboot = 599, md = FALSE, ci = FALSE, es = FALSE, esci = FALSE )
data |
the data as a data frame |
deps |
a vector of strings naming the dependent variables in
|
group |
a string naming the grouping variable in |
yuen |
|
tr |
a number between 0 and 0.5, (default: 0.2), the proportion of measurements to trim from each end, when using the trim and bootstrap methods |
mest |
|
method |
|
yuenbt |
|
nboot |
a number (default: 599) specifying the number of bootstrap samples to use when using the bootstrap method |
md |
|
ci |
|
es |
|
esci |
|
A results object containing:
results$ttest | the table of t-test results | ||||
Tables can be converted to data frames with asDF
or as.data.frame
. For example:
results$ttest$asDF
as.data.frame(results$ttest)
data('eurosoccer', package='WRS2') SpainGermany <- subset(eurosoccer, eurosoccer$League == 'Spain' | eurosoccer$League == 'Germany') SpainGermany <- droplevels(SpainGermany) rttestIS(SpainGermany, dep = 'GoalsScored', group = 'League', yuen = TRUE, mest = TRUE) # # ROBUST INDEPENDENT SAMPLES T-TEST # # Robust Independent Samples T-Test # --------------------------------------------------------- # t df p # --------------------------------------------------------- # GoalsScored Yuen's test 0.297 17.3 0.770 # M-estimator -0.933 0.993 # --------------------------------------------------------- #
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