This function calculates the odds ratio of a 2x2 table/matrix, or a data frame with two columns.
oddsratio(x)A numeric vector of length one.
A 2x2 matrix/table of counts, or a data.frame with exactly two columns
representing the two binary variables.
The numerator equals the ratio of the top left entry and the bottom left entry of the
2x2 table, while the denominator equals the ratio of the top right entry and
the bottom right entry. The result is usually slightly different from the one of
stats::fisher.test(), which is based on the ML estimate of the odds ratio.
ci_oddsratio()
tab <- cbind(c(10, 5), c(4, 4))
oddsratio(tab)
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