[R] tapply grand mean

Hi R-users, I have a data.frame like this (modificated from https://stat.ethz.ch/pipermail/r-help/2007-August/138124.html). y1 - rnorm(20) + 6.8 y2 - rnorm(20) + (1:20*1.7 + 1) y3 - rnorm(20) + (1:20*6.7 + 3.7) y - c(y1,y2,y3) x - rep(1:5,12) f - gl(3,20, labels=paste(lev, 1:3, sep=)) d -

Re: [R] tapply grand mean

Lauri Nikkinen wrote: Hi R-users, I have a data.frame like this (modificated from https://stat.ethz.ch/pipermail/r-help/2007-August/138124.html). y1 - rnorm(20) + 6.8 y2 - rnorm(20) + (1:20*1.7 + 1) y3 - rnorm(20) + (1:20*6.7 + 3.7) y - c(y1,y2,y3) x - rep(1:5,12) f - gl(3,20,

Re: [R] tapply grand mean

Thanks Chuck but I would fancy the output made by tapply because the idea is to make a barplot based on those values. -Lauri 2007/8/8, Chuck Cleland [EMAIL PROTECTED]: Lauri Nikkinen wrote: Hi R-users, I have a data.frame like this (modificated from

Re: [R] tapply grand mean

Lauri Nikkinen wrote: Thanks Chuck but I would fancy the output made by tapply because the idea is to make a barplot based on those values. -Lauri sum1 - summary(y ~ x + f, data = d, fun=mean, method=cross, overall=TRUE) df - data.frame(x = sum1$x, f = sum1$f, y = sum1$S)