# Natural direct effect for loglinear models without the multiplicative interaction

### Description

This function calculates the natural direct effect using the odds ratio for a loglinear model without the multiplicative interaction and under dummy code parametrization

### Usage

1 | ```
ndirect_effect_or(x, y, z, w, t)
``` |

### Arguments

`x` |
it is the parameter |

`y` |
it is the parameter |

`z` |
it is the parameter |

`w` |
it is the parameter |

`t` |
it is the parameter |

### Value

ndirect_effect_or returns the natural direct effect

### Author(s)

Gloria Gheno

### References

Gheno Gloria (2015),The causal analysis in the loglinear model

### Examples

1 2 | ```
#> ndirect_effect_or(0.6,0.8,0.5,2,0.7)
#[1] 0.8039409
``` |