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Please review the randomization test code

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BYUNGSUK KIM
BYUNGSUK KIM 2019-12-13
关闭： Adam Danz 2019-12-13
Hi.
I created code for Randomization t-test (2-samples)
The final p value appears as 1 for all row data.
Please review the code below and the attached data for correctness.
Thank you.
[code]
eA= y- yhatA;
eB= y- yhatB;
diff=eA.^2-eB.^2;
meandiff=mean(diff);
n=length(diff);
niter = 199
sum= 0;
for k = 1: niter
randomsign=2*round(rand(1,n))-1;
signeddiff =randomsign. *diff;
meansigneddiff=mean(signeddiff);
sum=sum+...
(abs(meansigneddiff)>
=abs(meandiff));
end
pvalue=(sum+1)/(niter+1)

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