Hi
I'm trying to create tables of means, standard deviations and numbers
of observations (i) for
each laboratory (ii) for each batch number (iii) for each batch at
each laboratory for the attached data.
I created these functions:
summary.aggregate - function(y, label, ...)
{
temp.mean
Benjamin Dickgiesser wrote:
Hi
I'm trying to create tables of means, standard deviations and numbers
of observations (i) for
each laboratory (ii) for each batch number (iii) for each batch at
each laboratory for the attached data.
I created these functions:
summary.aggregate -
I can only think of rather complex ways to solve the labeling issue...
I would appreciate it if someone could point out if there are
better/cleaner/easier ways of achieving what I'm trying todo.
Does this help?
g - function(y) {
s - apply(y, 2,
function(z) {
Thank you, that was exactly what I was looking for.
On 11/7/06, hadley wickham [EMAIL PROTECTED] wrote:
I can only think of rather complex ways to solve the labeling issue...
I would appreciate it if someone could point out if there are
better/cleaner/easier ways of achieving what
With the reshape package, I'd do it like this:
df - data.frame(LAB = rep(1:8, each=60), BATCH = rep(c(1,2), 240), Y
=rnorm(480))
dfm - melt(df, measured=Y)
Should be
dfm - melt(df, measure.var=Y)
(thanks to Chuck for pointing that out)
cast(dfm, LAB ~ ., c(mean, sd, length))
cast(dfm,
