jacktanner wrote:
>
> There's a funny inconsistency in how t.test handles paired=T or paired=F.
> If x
> and y parameters are lists, paired=F works, but paired=T doesn't.
>
>> lg=read.csv("my.csv")
>> a = subset(lg, condition=="a")["score"]
>> b = subset(lg, condition=="b")["score"]
>> t.test(
Hi Jack,
Maybe this helps.
# make some data
set.seed(123)
condition <- factor(rep(c("a","b"), each = 5))
score <- rnorm(10);
lg <- data.frame(condition, score)
# Carry out commands
a <- subset(lg,condition=="a")["score"]
b <- subset(lg,condition=="b")["score"]
t.test(a,b,paired=TRUE)
#Error
There's a funny inconsistency in how t.test handles paired=T or paired=F. If x
and y parameters are lists, paired=F works, but paired=T doesn't.
> lg=read.csv("my.csv")
> a = subset(lg, condition=="a")["score"]
> b = subset(lg, condition=="b")["score"]
> t.test(a,b)
> t.test(a,b, paired=TRUE)
Erro
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