R: semPower.powerPlot.byN

semPower.powerPlot.byN

R Documentation

semPower.powerPlot.byN

Description

Shows a plot showing power as function of N for a given effect and alpha.

Usage

semPower.powerPlot.byN(
  effect = NULL,
  effect.measure = NULL,
  alpha,
  df,
  p = NULL,
  SigmaHat = NULL,
  Sigma = NULL,
  power.min = alpha,
  power.max = 0.99,
  steps = 50,
  linewidth = 1
)

Arguments

`effect`	effect size specifying the discrepancy between H0 and H1
`effect.measure`	type of effect, one of `"F0"`, `"RMSEA"`, `"Mc"`, `"GFI"`, `"AGFI"`
`alpha`	alpha error
`df`	the model degrees of freedom
`p`	the number of observed variables, required for `effect.measure = "GFI"` and `effect.measure = "AGFI"`
`SigmaHat`	model implied covariance matrix. Use in conjunction with Sigma`` to define effect`and`effect.measure'.
`Sigma`	population covariance matrix. Use in conjunction with `SigmaHat` to define `effect` and `effect.measure`.
`power.min`	minimum power, must not be smaller than `alpha`.
`power.max`	maximum power
`steps`	number of steps
`linewidth`	linewidth

Value

powerplot

Examples

## Not run: 
semPower.powerPlot.byN(effect = .05, effect.measure = "RMSEA", 
                       alpha = .05, power.min = .05, power.max = .99, df = 200)

## End(Not run)