Statistical Analysis Stack Exchange
Statistical Analysis Stack Exchange

Questions tagged [permutation-test]

Statistical tests based on rearrangements of data that are consistent with the null hypothesis.

504 questions
12
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1 answer

Doubling the tails in two-sample permutation test

Suppose we have two samples and we wish to determine if they are drawn from the same distribution, the samples A,B being composed of some integers say. If we test this using a two-sample permutation test, specifically by looking at permutations…
Harri
  • 121
3
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1 answer

Permutation test for difference in distributions in R

I was reading a paper that says they use an "ANOVA permutation test" to test if there is a difference in the (in-)degree distribution among groups of nodes in a network. I Googled this and found a resource (here) on how that works. In the example…
StatsSorceress
  • 686
3
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1 answer

Permutation test for variance

I have two arrays of data and I wish to test whether or not they are from some distribution with the same variance (whether or not they have the same mean is not important). I don't know what distribution the data are from and certainly have no…
Bowler
  • 1,191
1
vote
1 answer

Permulations to test if values are different than zero?

I have a distance measure, which ranges between 0 and 1, between several pairs of populations. I need to figure out if each distance is statistically different from zero using permutations, any suggestions on how to achieve that? Thanks
user36491
  • 405
1
vote
1 answer

Permutation Analysis using unequal samples

I need to conduct a permutation analysis on unequal samples, one (X) with 579 data points, and another (Y) with 1289 data points. There is an obvious difference in the data. However, this difference may be due to the imbalance between sample…
user49140
  • 11
0
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0 answers

Sanity checking custom cluster extent permutation test of time series data correctly

I am currently developing a cluster extent permutation test on time series data. For that I wanted to sanity test to see whether there are any biases with my test when it is ran on null (i.e., no effect between conditions) data or not. My approach…
Mah1510
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0
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When does the 'equal' affect most in the permutation test?

First of all, I need to use a permutation test to calculate the significance of some data. When I do the permutation test, I need to shuffle the data and compare the original one and the shuffled one. Then the problems raises, in some scenarios, I…
thliao
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0
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1 answer

What is a permutation test?

I am trying to understand what a permutation test in a perMANOVA is. Can someone either explain how data is being substituted for each permutation or direct me to a good visualization on youtube?
bob ox
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0
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1 answer

Permutation test for variability: Is my analysis correct?

Concerning the paper: Permutation Tests for Comparing Two Populations, Journal of Mathematical Sciences & Mathematical Education, Vol. 3 No.3, pg 25, Ferry Butar Butar, Ph.D., Jae-Wan Park There are two kinds of product inspectors: A…
licas
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