# Effect measure for association between two categorical variables

Source:`R/effect.R`

`effect_tabular.Rd`

User can either use or extend these functions to configure effect calculation.

## Usage

```
effect_odds_ratio(x, by, conf_level = 0.95)
effect_relative_risk(x, by, conf_level = 0.95)
effect_risk_difference(x, by, conf_level = 0.95)
```

## Arguments

- x
categorical vector (character, factor, ...)

- by
categorical vector (of exactly 2 unique levels)

- conf_level
confidence interval level

## Functions

`effect_odds_ratio()`

: (**Default**) calculate the odds ratio`effect_relative_risk()`

: calculate the relative risk`effect_risk_difference()`

: calculate the risk difference