edesignDR contains experimental set up of a replicated time course microarray experiment where rats were submitted to 3 different dosis of a toxic compound. A control and an placebo treatments are also present in the experiment.
data(edesignDR)"Time" indicates the values that variable Time takes in each hybridization.
"Replicates" is an index indicating replicate hyridizations, i.e. hybridizations are numbered, giving replicates the same number.
"Control", "Placebo", "Low", "Medium" and "High" columns indicate array assigment to experimental groups, coding with 1 and 0 whether each array belongs to that group or not.