Displaying 1 result from an estimated 1 matches for "damage_dr".
2009 Jul 23
1
help with randomisation test...
...cies 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 get rid of...