The following refer to the chlorpyrifos dataset, pyrifo1.
Note that column Simve identifies week and pond using the following notation.
Week are −4 and −1, indicated as W_4 and W_1, respectively, and
0.1, 1, 2, 4, 8, 12, 15, 19, and 24, indicated by W01, W1, W2, etc. Ponds are
1–12, indicated by c1–c12. Thus, W01C5 is week 0.1, pond 5. Next, ponds 2, 3,
5, and 11 are controls (conc = 0), 1 and 8 are low dose (conc = 0.1 μg l
−1), 4 and 10 are low intermediate (0.9 μg l −1), 7 and 12 are
high intermediate (6 μg l −1), and 6 and 9 are high dose (44 μg
l −1). Use the Ln(1 + x) transform on
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