Implementing bootstrap for grouped data

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G Diaferia
G Diaferia 2017-2-3
% nboot = number of samples % fun = function for computing statistics on each sample % data = data which needs to be organized in groups according to the grouping variable GrVar. The bootstraping needs to be applied to each of these groups
function GRbootstat = grpbootstrp(nboot, fun, data, GrVar)
GRbootstat = cell(1,size(unique(GrVar),1)); for i = 1:size(unique(GrVar),1); GRbootstat(1,i) = {zeros(nboot,1)}; end
f = @(x)(bootstrp(nboot,feval(fun,x),x));
%f = feval(bootstrp(nboot,feval(fun,data),data)); GRbootstat = splitapply(f, data, findgroups(GrVar));
end

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