pwr2ppl (version 0.1.1)

anova1f_4c: Compute power for a One Factor ANOVA with four levels. Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user

Description

Compute power for a One Factor ANOVA with four levels. Takes means, sds, and sample sizes for each group. Alpha is .05 by default, alternative values may be entered by user

Usage

anova1f_4c(m1 = NULL, m2 = NULL, m3 = NULL, m4 = NULL, s1 = NULL,
  s2 = NULL, s3 = NULL, s4 = NULL, n1 = NULL, n2 = NULL,
  n3 = NULL, n4 = NULL, alpha = 0.05, c1 = 0, c2 = 0, c3 = 0,
  c4 = 0)

Arguments

m1

Mean of first group

m2

Mean of second group

m3

Mean of third group

m4

Mean of fourth group

s1

Standard deviation of first group

s2

Standard deviation of second group

s3

Standard deviation of third group

s4

Standard deviation of forth group

n1

Sample size for first group

n2

Sample size for second group

n3

Sample size for third group

n4

Sample size for fourth group

alpha

Type I error (default is .05)

c1

Weight for Contrast 1 (default is 0)

c2

Weight for Contrast 2 (default is 0)

c3

Weight for Contrast 3 (default is 0)

c4

Weight for Contrast 4 (default is 0)

Examples

# NOT RUN {
anova1f_4c(m1=80, m2=82, m3=82, m4=86, s1=10, s2=10,
s3=10, s4=10, n1=60, n2=60, n3=60, n4=60,
c1=1, c2=1, c3=-1, c4=-1, alpha=.05)
anova1f_4c(m1=80, m2=82, m3=82, m4=86, s1=10, s2=10,
s3=10, s4=10, n1=60, n2=60, n3=60, n4=60,
c1=1, c2=-1, c3=-0, c4=0, alpha=.05)
anova1f_4c(m1=80, m2=82, m3=82, m4=86, s1=10, s2=10,
s3=10, s4=10, n1=60, n2=60, n3=60, n4=60,
c1=0, c2=0, c3=1, c4=-1, alpha=.05)
#'@return Power for the One Factor ANOVA
# }