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. Author manuscript; available in PMC: 2011 Apr 1.
Published in final edited form as: Evolution. 2009 Oct 23;64(4):1076–1085. doi: 10.1111/j.1558-5646.2009.00874.x

Figure 2.

Figure 2

Type 1 error rates for testing the eigenvalues from a canonical analysis under the null hypothesis of no linear or non-linear effects on fitness for p = two, five and ten traits. Solid black and diagonal bars refer to the Type I error rates using the double regression approach corresponding to an α level of 0.05 and nominally adjusted α of 0.05/ p, respectively. Horizontal and open bars refer to tests of the eigenvalues using the permutation procedure at the unadjusted α level of 0.05 and nominally adjusted α of 0.05/ p, respectively.