function out=handMetaGenotypeVariabilityAnalysis(in)

data=in.handedness;
minN=70;
validTemps=in.expTemp==22 | in.expTemp==23;
validConds=strcmp('normal',in.expCond);
validIndices=validTemps.*validConds;

genotypes=unique(in.genotype);

out.dgrpVars=[];
out.nondgrpVars=[];

for i=1:length(genotypes)
    genoIndices=strcmp(genotypes{i},in.genotype);

    if isequal(genotypes{i}(1:min([4 length(genotypes{i})])),'dgrp')
        if sum(validIndices.*genoIndices)>=minN
        out.dgrpVars=[out.dgrpVars;nanstd(data(validIndices.*genoIndices==1))/nanmean(data(validIndices.*genoIndices==1))];
        end
    else
if sum(validIndices.*genoIndices)>=minN
        out.nondgrpVars=[out.nondgrpVars;nanstd(data(validIndices.*genoIndices==1))/nanmean(data(validIndices.*genoIndices==1))];
end
    end
end