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2009 Jul 14
1
Problem with GroupedData
...
data1 <- read.csv("E:\\PHD GLASGOW UNIVERSITY\\Data\\R\\Colin\\Cailness21.csv")
attach(data1)
names(data1)
[1] "Date" "d" "m" "y" "Time"
[6] "Depth" "Temp" "Group_Time"
Recently, i try two add a column into this data frame, but when i try to use the 'groupedData' function with this new data frame via command below, it reported the problem stated after the command below.
library(nlme)
tmp <- groupedData(Temp ~ d | Depth, data2, order.groups =...