search for: cueleft

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2005 Mar 10
1
contrast matrix for aov
...-factor, repeated measures design, with Cue Direction (2) x Brain Hemisphere(2) Each of these has 2 levels, 'left' and 'right', so it's a simple 2x2 design matrix. We have 8 subjects in each cell (a balanced design) and we want to specify the interaction contrast so that: CueLeft>CueRght for the Right Hemisphere CueRght>CueLeft for the Left Hemisphere. Here is a copy of the relevant commands for R: ######################################## lh_cueL <- rowMeans( LHroi.cueL[,t1:t2] ) lh_cueR <- rowMeans( LHroi.cueR[,t1:t2] ) rh_cueL <- rowMeans( RHroi.cueL[,t1:...