# calcWO.formula: Win odds calculation using formula syntax In hce: Design and Analysis of Hierarchical Composite Endpoints

 calcWO.formula R Documentation

## Win odds calculation using formula syntax

### Description

Win odds calculation using formula syntax

### Usage

``````## S3 method for class 'formula'
calcWO(x, data, ...)
``````

### Arguments

 `x` an object of class formula. `data` a data frame. `...` additional parameters.

### Value

a data frame containing the win odds and its confidence interval. It contains the following columns:

• WO calculated win odds.

• LCL lower confidence limit.

• UCL upper confidence limit.

• SE standard error of the win odds.

• WOnull win odds of the null hypothesis (specified in the `WOnull` argument).

• alpha two-sided significance level for calculating the confidence interval (specified in the `alpha` argument).

• Pvalue p-value associated with testing the null hypothesis.

• WP calculated win probability.

• WP_SE standard error of the win probability.

• WP_SD standard deviation of the win probability, calculated as `WP_SE` multiplied by `sqrt(N)`.

• N total number of patients in the analysis.

• formula returning the specified formula in the `x` argument.

• ref showing how the reference group was selected. Can be modifying by specifying the `ref` argument.

### References

Gasparyan SB et al. "Adjusted win ratio with stratification: calculation methods and interpretation." Statistical Methods in Medical Research 30.2 (2021): 580-611. doi:10.1177/0962280220942558

`calcWO()`, `calcWO.hce()`, `calcWO.data.frame()`.

### Examples

``````#Example 1
data(HCE1)
calcWO(AVAL ~ TRTP, data = HCE1)

#Example 2
calcWO(data = COVID19, GROUP ~ TRTP, ref = "Placebo")

``````

hce documentation built on May 29, 2024, 5:52 a.m.