On Dec 10, 2011, at 9:13 AM, R. Michael Weylandt wrote:
Perhaps something like this (untested) -- it's going to depend on the
exact structure of your data so if this doesn't work, please use
dput() to send a plain text representation:
tapply(data, data$animal, function(d) d[, c("A01", "A02")]
Perhaps something like this (untested) -- it's going to depend on the
exact structure of your data so if this doesn't work, please use
dput() to send a plain text representation:
tapply(data, data$animal, function(d) d[, c("A01", "A02")] - d[d$time
== "d0", c("A01", "A02")] )
In short, take "data
Hello,
I have a matrix
animaltime A01 A02
A d0 -5.4 2.7
A d1124.6 5.9
A d224 3.96.3
B
3 matches
Mail list logo
