Additional file 3.

Power to detect variance heterogeneity induced by interaction, assuming <a onClick="popup('http://www.biomedcentral.com/1471-2156/13/4/mathml/M13','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2156/13/4/mathml/M13">View MathML</a> distribution of residual error. The file contains the figure describing dependency of power to detect variance heterogeneity induced by interaction and the effect of interaction, βgF, using Levene's (circles) and SVLM (triangles) tests. The residual error follows <a onClick="popup('http://www.biomedcentral.com/1471-2156/13/4/mathml/M14','MathML',630,470);return false;" target="_blank" href="http://www.biomedcentral.com/1471-2156/13/4/mathml/M14">View MathML</a> distribution. Scenarios with different frequencies of interacting allele are given in Panel A - 5%, Panel B - 40%, Panel C - 60%, and Panel D - 95%.

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Struchalin et al. BMC Genetics 2012 13:4   doi:10.1186/1471-2156-13-4