sum_norm: Normality Test Summary Table for Numeric Variables
Description
This function performs the Shapiro-Wilk normality test on all numeric variables
in a dataset and returns the results in a publication-ready flextable.
Extremely small p-values are displayed as "p < 0.001". The function
automatically detects numeric variables and ignores non-numeric columns.
Value
A flextable summarizing each numeric variable with Shapiro-Wilk
W statistic, formatted p-value, and distribution classification
("Normal" or "Skewed").
Arguments
data
A data frame containing numeric and non-numeric variables.
Only numeric variables are assessed for normality.
sample_size
Integer. Maximum number of observations to use for the
Shapiro-Wilk test per variable (default = 5000).