One-Way ANOVA 3 - Using Superscript Letters in Tukey's Test

How to add letters to indicate significant differences
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[@rexbomvetsaura1087]

in two factorial, ANOVA how to denote letters if the test between effects is significant.. is it possible that means denoted with two letters e.g. mean is 3.45 ^ a, ab

[@danialharis9374]

Question, if all the results shows no significant for all treatment, Do I need to draw only one line which is 'a' as you mentioned just now?

[@sooshichan]

Same question. Just that ours is all significant.

[@biodegradable8894]

At 3:56, assuming 0.71 and 1.4 were not significantly different, how do I draw the line? Do I draw it from 0.71 all the way to 1.4 or do I skip 1.02?
The video was amazingly helpful, by the way. Thank you!

[@eetuc9791]

Thanks for the information

[@chintumofu3463]

I am so confused. How do you tell the significance? Is it by seeing if they are in close range or maybe far apart or what

[@TeferiMekonnin-l2w]

dr. Rech your teaching is a lovely one!! please do on fertilizer rate of phosphorus and potassium by RCBD design

[@jackybhagat9270]

Sorry, your video is not useful, it's super useful. Many thanks

[@RosaneRech]

Thanks Jacky! :-D

[@hobiliyumak]

thank you for this video. It's very useful.

[@iot3136]

Dear Dr. Rech, Thank you for this video. Could you possibly share and example how follow this for multiple plots at once using "facet wrap",

[@guilhermeluiz8428]

Muito origado pelo vídeo! Ajudou demais a entender essa confusão de letra.

[@atanea2867]

Thank you so much.. Search all over for this

[@RosaneRech]

Glad I could help

[@devindeelakdika3259]

This was very useful! I was wondering whether this manually grouping method can be used for analyze the results of a non-parametric post hoc test?

[@RosaneRech]

It can, the idea continue to be the same.

[@devindeelakdika3259]

@@RosaneRech Thank you so much for your response professor !

[@diogocosta5526]

Obrigado!

[@Gushpuppies]

Thanks very much, Rosane. You are the best. I have a query though please and need your help. There are four treatments with descending order of averages being 56,19, T and 17. For the pair, 17-19 p > 0.02. For all other pairs, p

[@RosaneRech]

Sorry, it is not correct. Remember to put them in decreasing order.

[@Gushpuppies]

@@RosaneRech Thanks for answering. i realized there was an error earlier on. It is resolved now.

[@hazeltee3508]

@@RosaneRech can it be arranged in increasing order instead?

[@katelyn6435]

Smart way! It's much simpler than the method I learnt to compare down and up etc. Thank you!

[@siddharthasrivastava6435]

Thank you mam..

[@shining9838]

thank you, Roseane. It helps me a lot

[@simonyoung6880]

I just used a Games-Howell test. How can I have compact letter display automatically with a code. Does cldList() work?
Struggling with it as the output for GHT features "group1" and "group2" as columns, not one fusioned "comparisons" column. Probably trivial, but I don't see any solution at this point. Help very much appreciated here!

[@RosaneRech]

Hello Simon, you can have it automatically using the multCompView package.
You can check it on my video th-cam.com/video/pWs-mlCmOi8/w-d-xo.html or in the page statdoe.com/two-way-anova-in-r/
However, the examples are for Tukey's test, although it should work for other tests.

[@cooldeepak88]

I have 4 values 54.6, 50, 28, 23.8 according to tukey's test there was no significance among each other how can i assign letters in this case madam.. please help me

[@cooldeepak88]

I used graphpad prism to get statistical differences...is it right like this- 54.6a, 50 a, 28a,

[@a.b.caerobics9678]

Wait for the answer !

[@IsraelLopez-mz7km]

Thanks Roseane!

[@bkarim7349]

Thanks, vert helpfull

[@RosaneRech]

Glad it helped

[@trustpublishinghouse4983]

How can this process be automated using SPSS

[@aaronayubasamaila8821]

Itz same method sir. I jst computed it and compare the superscripts with those I got in Rstudio for same data I computed in spss. Once you understand this method then you're good to go.

[@niamhpatterson2468]

​@@aaronayubasamaila8821 So I have 121 pairs to compare and it is too complicated/laborious using this method, do you have a method to compute the superscript? Thanks!

[@RosaneRech]

I am not familiar on working with SPSS, but considering it is a great and complete software, I would guess it is possible to do on it.

[@ZNaim-ez8my]

How can i use superscript from spss independent t test? Please help. I literally stuck with it😭😭

[@uzomanworgu6458]

very helpful!!!!

[@LinneaRydell-l3g]

Thank you so much!! I have 15 means to compare and this made things so much easier...!

[@RosaneRech]

I am happy it helped you!

[@ZNaim-ez8my]

Thank you. Is it possible to count the superscript from spss independent t test?

[@rajendergandu9724]

very useful madam

[@Jadd90]

I found it very helpful. thank you Professor

[@RosaneRech]

You are welcome!

[@abbasidris3754]

Thank you so much

[@RosaneRech]

You're most welcome

[@niamhpatterson2468]

Thank you, your videos are very helpful. Can you advise on how to add superscript to show significance with many pairs - I have 16 means, so 121 pairs. Comparing them using the manual method is too confusing.

[@RosaneRech]

Hello Niamh,
I learnt a way of R to generate the letters for indicating the significant differences using the multicompView package.
Taking the example of the tutorial, you must run the following code:
# comparing means by Tukey's test
install.packages("multcompView")
library(multcompView)
tukey.rr

[@niamhpatterson2468]

@@RosaneRech Thank you so much! I tired a number of things without success but this works perfectly and is so simple. As are your other examples.

[@RosaneRech]

@@niamhpatterson2468 I try to simplify as much as possible the codes. Glad it worked for you.