Root mean square calculations

Hello,
I want to calculate the sqaure root of the mean sqaured differences of succesisve numbers. Can anyone explain of how to calculate this in matlab if possible with an example for a set of numbers.
thanks.

 采纳的回答

Stefan, what happened when you tried this:
m = sort(rand(1, 7)); % create sample data
mDiff = diff(m)
meanSquareOfDiffs = mean(mDiff .^ 2)
ms = sqrt(meanSquareOfDiffs)
It seems pretty easy if you just take it a step at a dime. Heck, you could even have used a for loop if you really got stuck and needed a simple brute force method. What did you try that didn't work?

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By the way, this (what you described) is not the RMS like you or someone tagged this post with.

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