search for: control_cr

...nts per species are damaged, 5 not. I let a caterpillar feed on each plant and measured the growth of the caterpillars on control plants (CR) and on damaged plants (DR). The difference, DR-CR is an indicator for induced resistance IR. The data could look like this...just as an example. Species Control_CR Damage_DR A 10 2 A 9 3 A 7 4 A 9 2 A 8 3 B 5 4 B 6 3 B 4 2 B 5 4 B 6 3 C 8 1 C 6 2 C 4 4 C 7 1 C 6 2 Now, i want to see if there is a trade-off (or a negative correlation) between CR and IR, but because IR is calculated out of CR there is a danger of spurious correlation. What I have to do to g...