Samples are given in rows and experiment descriptors are given in columns. Row
names contain sample names.
"Time"
indicates the values that variable Time takes in each
experimental condition. There are 6 time points.
"Replicates"
is an index indicating the same experimental condition.
"Group.1"
and "Group.2"
columns indicate assigment to experimental groups,
coding with 1 and 0 whether each sample belongs to that group or not.