Add p-Values to Correlation Matrix Plot in R (2 Examples) | psych, corrplot & ggcorrplot Packages

[@conceptscognitionlabjamier7014]

You're all business. I love it. These are awesome videos. Thank you!!!

[@micha.statisticsglobe]

Thank you very much for your kind feedback! 🙂

[@feiluo993]

Thank you for keep uploading high-quality videos! Really appreciate them! Danke schön! Joachim!

[@StatisticsGlobe]

Thank you so much Fei! Glad you like them!

[@johneagle4384]

Thank you, once again. Your videos are great. It just happens I am working in the same subject of the video.

[@StatisticsGlobe]

Thank you for the kind words John! Glad the tutorial is helpful!

[@muhammadameeq9776]

Well-done brother , Keep it up brother

[@StatisticsGlobe]

Thank you Muhammad, I will try my best! :)

[@katharinapuhringer3643]

Why are the p-values not symmetric within the correlation plot? For example the correlation between x4 and x2: is it 0.48 or 0.96?

[@cansustatisticsglobe]

Hello Katharina, It is a relevant question. When I checked the output, I had the same confusion. However, if you print corr.test(data) first, you will see that it is noted in the output that the entries above the diagonal are adjusted for multiple tests. Please run corr.test(data) without calling the $p object to confirm this. Best, Cansu

[@katharinapuhringer3643]

Dear@@cansustatisticsglobe , you are absolutely right, now I see this information as well. I am wondering which exact adjustment is applied here by default and if it's possible not to apply it, resulting in a symmetric plot? If you have any information about this it would be very helpful. Thank you very much and all the best, Katharina

[@cansustatisticsglobe]

Hello @@katharinapuhringer3643 , To find answers to these sort of questions, the best way is to check the documentation of the function. So here: www.rdocumentation.org/packages/psych/versions/2.3.6/topics/corr.test, you will find the answers. Best, Cansu

[@katharinapuhringer3643]

@@cansustatisticsglobe thank you very much!

[@cansustatisticsglobe]

@@katharinapuhringer3643 You are welcome!

[@saeedfarajzadehvalilou3908]

How can we calculate p-value for a matrix manually without using base R function?

[@cansustatisticsglobe]

Hello Saeed, Sorry for the late response. Do you still need help? Regards, Cansu