Description Usage Arguments Author(s) Examples
oneway analysis of varience
1 | onewayEst(z)
|
z |
A list of components |
Xueli Gao
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | ##---- Should be DIRECTLY executable !! ----
##-- ==> Define data, use random,
##-- or do help(data=index) for the standard data sets.
## The function is currently defined as
function (z)
{
s = sapply(z, sum)
Total = sum(unlist(z)^2)
group_n <- sapply(z, length)
A = sum(s^2/group_n)
CF <- (sum(unlist(z)))^2/length(unlist(z))
SS_between <- A - CF
SS_within <- Total - A
df_between <- length(z) - 1
df_within <- length(unlist(z)) - length(z)
MSb <- (A - CF)/(length(z) - 1)
MSw <- (Total - A)/(length(unlist(z)) - length(z))
F <- MSb/MSw
p <- 1 - pf(F, df_between, df_within, lower.tail = T)
anotable = cbind(df = c(df_between, df_within), SS = c(SS_between,
SS_within), MS = c(MSb, MSw), F = c(F, NA), `Pr(<F)` = c(p,
NA))
rownames(anotable) <- c("Treatment", "Residuals")
printCoefmat(anotable, P.values = T, has.Pvalue = T, signif.stars = T,
na.print = "")
}
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