Nothing

```
ndirect_effect_or <-
function(x,y,z,w,t)
{((1+x*y*z)^(-1)*x*y*z*(1+w)^(-1)*w+ (1+x*y)^(-1)*x*y*(1+w)^(-1))*
(1-(1+x*y*z)^(-1)*x*y*z*(1+w)^(-1)*w- (1+x*y)^(-1)*x*y*(1+w)^(-1))^(-1)*
((1+x)^(-1)*(1+w)^(-1)+(1+x*z)^(-1)*(1+w)^(-1)*w)*
(1-(1+x)^(-1)*(1+w)^(-1)-(1+x*z)^(-1)*(1+w)^(-1)*w)^(-1)}
```

**Any scripts or data that you put into this service are public.**

Embedding an R snippet on your website

Add the following code to your website.

For more information on customizing the embed code, read Embedding Snippets.