summary.alpha {coefficientalpha}

Print alpha/omega and its confidence interval.

Description

Print alpha/omega and its confidence interval.

Usage

## S3 method for class 'alpha'
summary(object, type = "raw", prob = 0.95,...)
## S3 method for class 'omega'
summary(object, type = "raw", prob = 0.95,...)

Arguments

object

Results from the function alpha or omega.

type

If not raw, the CI based on transformation will be provided. The transformed CI will be always in the range of [0,1].

prob

Alpha level for confidence interval. By default, the 95

...

Option can be passed to the summary function.

Author(s)

Zhiyong Zhang and Ke-Hai Yuan

References

Zhang, Z. & Yuan, K.-H. (2014). Robust Coefficients Alpha and Omega and their Confidence Intervals: Methods and Software.

Examples

data(example)

res<-alpha(example, varphi=.01)
## diagnostic plot
plot(res, type='d')

## alpha with varphi=.01 & standard error
res<-alpha(example, varphi=.01, se=TRUE)
## confidence interval
summary(res)