One-Way ANOVA R-tutorial 1 - Analysis of Variance

R code: statdoe.com/on...
In this series of videos, we doing a complete step-by-step analysis of a one-factor experiment using R-Studio.
We are going to do the following steps:
Video 1:
- Load the data from a csv file;
- Build a simple plot to visualise the data behaviour;
- Perform the analysis of variance.
Video 2:
- Build a table with the summarised data: the mean, the standard deviation, and the number of observations;
- Compare the means by Tukey’s test;
- Add superscript letters to indicate significant differences.
Video 3:
- Step-by-step tutorial on how to add superscript letters to indicate significant differences in Tukey's test.
Video 4:
- Create a publication-grade bar-plot for the final visualization of the results.
You can find the links for the R code and the data files in the description of this video.
Functions used in this video:
str(), plot(), as.factor(), aov(), summary()
www.statdoe.com

[@antoniocesargodoy4850]

Professora Rosane, show de bola esses seus vídeos sobre o uso do R. Também sou um entusiasta desse software.

[@RosaneRech]

Obrigada Antonio. Faço parte da turma que acredita em amplo acesso ao conhecimento e ferramentas :)

[@user-fu6vi7gp5g]

Rosane Your video is a lovely one and go ahead please on soil fertility status and different fertilizer rate like phosphorus and potassium etc.

[@luisroca835]

Great Video! Thanks! One question. What about normality and homocedasticity test? you are supposed to test those two on the variables or on the residuals values of ANOVA model?

[@RosaneRech]

I am assuming normality and constant variance on the results. But it is always good idea to check these assumptions.

[@enriquequispe788]

Buen dia maestra!! :) :) ... Saludos cordiales desde Ayacucho-Perù. Le escribo maravillado por su explicación (aunque un poco dificultoso por el idioma) pero sabroso. Soy un pipiolo en este campo y me gustaría saber todo lo relacionado a la regresión múltiple (bioestadistico). Si no lo tuviera, ¿Es posible me recomiende algun video?. Gracias

[@agethananape1429]

Great video. Hi Rosane, I have a question. my data has one variable to be compared to a factor. How to I visualize it. I tried your method but I still have errors