All Questions
Tagged with friedman-test r
25
questions
1
vote
1
answer
87
views
Is there any post-hoc test for multiple comparisons after conducting the Friedman test by two group using a preference ranking questionnaires?
I have this dataframe:
group1<- matrix(c(rep(1,5),rep(2,5),rep(3,5),rep(4,5)), ncol=4)
group2<- matrix(c(rep(4,5),rep(3,5),rep(2,5),rep(1,5)), ncol=4)
I ...
Javi
1
vote
0
answers
38
views
Why is my Friedman posthoc test said to be "true" with a p value of 0.06?
I used the function friedman.test to test for differences between multiple conditions and then used friedmanmc as a posthoc test....
- 11
0
votes
0
answers
20
views
Why is my result significant when there is no difference between means?
I have run a Friedman's test in R and it has given me the following result:
...
- 1
6
votes
1
answer
589
views
Alternative to Friedman Test in R
I am trying to run a Friedman Test in R with a repeated measure, however, my data do not qualify as an unreplicated complete block design. I am wondering what ...
- 75
1
vote
1
answer
1k
views
Error when conducting a Friedman Test in R
I am trying to run a Friedman Test on some data in R. I would like to measure a 3-way interaction with a repeated measure. However, I keep getting a persistent error message when I run the code and ...
- 75
1
vote
2
answers
92
views
Calculate CI for chi-squared of the Friedman test in R
I have a dataset (not normal distribution) with repeated measures over time. As such I was planning to use the Friedman.test in R:
friedman.test(dash ~ time | nr)
...
- 11
1
vote
0
answers
109
views
Trouble interpreting Friedman Test for 3-way repeated measures ANOVA
I would like to use a Friedman Test as a non-parametric alternative to a 3-way ANOVA in RStudio. I would like to measure how 'cl_conc' (Response Variable) is affected by 'soil_type' (Fixed Effect #1 - ...
- 35
1
vote
0
answers
618
views
Friedman Test not working. Is this the appropriate statistical test?
I am trying to determine if the mean distance between animal pairs changes across months. According to a Shapiro Wilk test, my mean distance measurements are not normally distributed. Due to this, I ...
- 33
1
vote
1
answer
481
views
Not sure what test to run to compare the proportions of a count outcome across a variable with 5 levels, between two groups (using R for analyses)
For a case-control study that I've conducted I've measured how many times a count outcome (count_outcome) occurred in each of 4 areas (...
- 139
1
vote
0
answers
567
views
Should I use Friedman test or Mixed Model for my data in R? Nested or not?
I have my Response variable which is Proportion of Range Exposed to extreme events for terrestrial mammal species in the future. More clearly, it is the Difference of Proportion of Range Exposed (DPRE)...
- 11
1
vote
0
answers
374
views
Error in friedman.test.default(c(3.7005, 1.3212, 2.0572, 1.8833, 0.4539, : not an unreplicated complete block design [closed]
I have a non-parametric data and would like to run Friedman Test.
Here is my code:
res <- data_copy %>% friedman_test( ten ~ res | order)
res
However, I got ...
- 11
1
vote
2
answers
875
views
Friedman's test in SPSS gives different results from R and python
I have a repeated measurement of n=452 participants. The Friedman test of SPSS gives df=2, chi-square 36.970 whereas below is the output of R and python. I cannot explain this difference for chi-...
- 51
2
votes
2
answers
403
views
Repeated measurements with different measurement methods and uneven sample size - which test is suited?
I am struggling to find the appropriate statistical test to analyze my data. I hope that my question will be understandable.
I have the following setup:
A porcine spine with three vertebral bodies (...
- 71
5
votes
1
answer
1k
views
Post-hoc Friedman Nemenyi Test
I used Friedman and Post-hoc Friedman Nemenyi Test.
In this PAPER, page 11, the Critical Difference (CD) equation is different from what has been used in R function, PAGE 14 ...
- 2,109
1
vote
1
answer
802
views
Friedman test for rank order question - Comparing between groups
In my study, participants ranked a total of 5 designs (different lamp types) in their order of preference (absolute favourite, second favourite, etc.). Participants ranked all lamps, and lamps were ...
- 53