Re: Statistical test for equality ?

[stn021]

2013/12/23 Nir Krakauer <address@hidden>

You could try

max(abs(x2 - x1))

rms(x2 - x1)   [rms function is in nan package, or you can

I assume that rms() = sqrt( mean((x1-x2).^2) ) , the root of the mean squares ?

So yes, this function calculates how far the two vectors are apart and is indeed a measure for my question. It is unfortunately not a test in the statistical sense. For that there would have to be some kind of p-value which would indicate if or if not the null-hypthesis should be assumed to be true. Similar to for example t_test()

 

or other such functions, depending on what form you think the noise takes

The noise follows a normal distribution, nothing special here. If x1==x2 then mean(noise) is near zero, std(noise) could have any value.