# prop.trend.test

##### Test for trend in proportions

Performs chi-squared test for trend in proportions, i.e., a test
asymptotically optimal for local alternatives where the log odds vary
in proportion with `score`

. By default, `score`

is chosen
as the group numbers.

- Keywords
- htest

##### Usage

`prop.trend.test(x, n, score = seq_along(x))`

##### Arguments

- x
- Number of events
- n
- Number of trials
- score
- Group score

##### Value

- An object of class
`"htest"`

with title, test statistic, p-value, etc.

##### Note

This really should get integrated with `prop.test`

##### See Also

##### Examples

`library(stats)`

```
smokers <- c( 83, 90, 129, 70 )
patients <- c( 86, 93, 136, 82 )
prop.test(smokers, patients)
prop.trend.test(smokers, patients)
prop.trend.test(smokers, patients, c(0,0,0,1))
```

*Documentation reproduced from package stats, version 3.3, License: Part of R 3.3*

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