R epifield function
First priority functions :
count
freq
epitable (2-way tables, with Fisher’s p-values, Chi square p-values, row percentages and column percentages; order of variables to be as epidemio as possible)
epiorder : turns integers and characters into factors, with yes-no labels (or unexposed-exposed, vaccinated-unvaccinated, +/-, or whatever you want; in the correct order to make tables easier (e.g. case first, then control)
Describe: describe(dataset), describe(variable)
Clear: clear values, data, function / pattern
Drop: drop variables (column), drop records
Label values (for non-binary variables or non obvious order binary variables, e.g. male/female)
logreg logistic regression
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