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The test is calculated using stats::shapiro.test.
stats::shapiro.test
effect_metrics_items(data, cols, labels = TRUE, clean = TRUE, ...)
A volker table containing itemwise statistics:
skewness: Measure of asymmetry in the distribution. A value of 0 indicates perfect symmetry.
kurtosis: Measure of the "tailedness" of the distribution.
W: W-statistic from the Shapiro-Wilk normality test.
p: p-value for the statistical test.
stars: Significance stars based on p-value (*, **, ***).
normality: Interpretation of normality based on Shapiro-Wilk test.
A tibble containing item measures.
The column holding metric values.
If TRUE (default) extracts labels from the attributes, see codebook.
Prepare data by data_clean.
Placeholder to allow calling the method with unused parameters from effect_metrics.
library(volker) data <- volker::chatgpt effect_metrics_items(data, starts_with("cg_adoption"))
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