ci.width {pda}R Documentation

utility functions for ci.plot

Description

Usage

ci.width(object, data, factors, lsm,
  rdf=df.resid(object), level=0.05,  crit=qt(1-level/2, rdf), ...)

Arguments

object fitted model object (optional unless response is omitted).
data data frame in which to interpret the variables named in the fit object (taken from object if omitted).
factors Character string of length 2 with names of x.factor and trace.factor as found in object and data (default is first 2 factors in object).
lsm least squares means (default taken from object)
rdf residual degrees of freedom
level significance level for confidence interval
crit value from t distribution at level with rdf degrees of freedom by default
... ignored

Value

Width of confidence interval at all levels of factor combinations, computed as (critical.value*sd/size).

See Also

ci.plot.


[Package pda version 1.2-3 Index]