anova2x2: Compute power for a Two by Two Between Subjects ANOVA. Takes...

Description Usage Arguments Value Examples

View source: R/anova2x2.R

Description

Compute power for a Two by Two Between Subjects ANOVA. Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user

Usage

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anova2x2(m1.1 = NULL, m1.2 = NULL, m2.1 = NULL, m2.2 = NULL,
  s1.1 = NULL, s1.2 = NULL, s2.1 = NULL, s2.2 = NULL,
  n1.1 = NULL, n1.2 = NULL, n2.1 = NULL, n2.2 = NULL,
  alpha = 0.05, all = "OFF")

Arguments

m1.1

Cell mean for First level of Factor A, First level of Factor B

m1.2

Cell mean for First level of Factor A, Second level of Factor B

m2.1

Cell mean for Second level of Factor A, First level of Factor B

m2.2

Cell mean for Second level of Factor A, Second level of Factor B

s1.1

Cell standard deviation for First level of Factor A, First level of Factor B

s1.2

Cell standard deviation for First level of Factor A, Second level of Factor B

s2.1

Cell standard deviation for Second level of Factor A, First level of Factor B

s2.2

Cell standard deviation for Second level of Factor A, Second level of Factor B

n1.1

Cell sample size for First level of Factor A, First level of Factor B

n1.2

Cell sample size for First level of Factor A, Second level of Factor B

n2.1

Cell sample size for Second level of Factor A, First level of Factor B

n2.2

Cell sample size for Second level of Factor A, Second level of Factor B

alpha

Type I error (default is .05)

all

Power(ALL) - Power for detecting all predictors in the model at once (default is "OFF")

Value

Power for the One Factor ANOVA

Examples

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anova2x2(m1.1=0.85, m1.2=0.85, m2.1=0.00, m2.2=0.60,
s1.1=1.7, s1.2=1.7, s2.1=1.7, s2.2=1.7,
n1.1=100, n1.2=100, n2.1=100, n2.2=100, alpha=.05)
anova2x2(m1.1=0.85, m1.2=0.85, m2.1=0.00, m2.2=0.60,
s1.1=1.7, s1.2=1.7, s2.1=1.7, s2.2=1.7,
n1.1=100, n1.2=100, n2.1=100, n2.2=100,
alpha=.05, all="ON")

chrisaberson/pwr2ppl documentation built on Dec. 2, 2019, 7:08 a.m.