R: Calculates a confidence inteval for a common slope (called by...

com.ci {smatr} | R Documentation

## Calculates a confidence inteval for a common slope (called by slope.com)

### Description

Calculates a confidence inteval for a common slope (called by slope.com)

### Usage

    com.ci(b, varb, crit, z, n, l1, l2, method, lambda, res.df, r.factor)

### Arguments

`b` | Common slope estimate.
`varb` | Estimated variance of the common slope.
`crit` | Critical value to be used in confidence interval calculation.
`z` | Variances and covariances of each group.
`n` | Sample sizes of each group.
`l1` | Variance of fitted axis scores, for each group.
`l2` | Variance of fitted residuals, for each group.
`method` | See slope.com for details.
`lambda` | Error variance ration (implied by choice of method.
`res.df` | Residual degrees of freedom, for each group.
`r.factor` | A vector of "robust factors" for each group, default value 1. Variance estimates are rescaled by this factor when using robust inference.

### Author(s)

Warton, D.I.David.Warton@unsw.edu.au, J. Ormerod, & S. Taskinen

### See Also

`slope.com`

[Package smatr version 3.4-3 Index]