Most voted "anova" questions
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3
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answer139
viewsDegrees of freedom Anova R
I’m trying to run a basic one-way ANOVA on R. library(drc) data=S.alba aov(DryMatter~Dose,data=S.alba) However, there are 7 treatments in this data. Therefore, DF (Gree of Freedom) or Degrees of…
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answer200
viewsMultiple Linear Regression in R
Hello, I have data (https://drive.google.com/open?id=1JdgsnJn5VrkL8j1BsfWzqYW9fMGXND6U) of a completely randomized experiment, in which the fungal growth in response to the application of different…
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answers190
viewsHow to insert lines in the graphs to denote post-hoc differences between compared groups?
I need to graphically identify post-hoc differences between mean comparisons. As the figure below: Send a dput with simple data to facilitate graph generation (not the figure), as well as the chart…
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answer111
viewsDouble factor in r with letters for differentiation
Dear friends, I’m trying to perform a double factor analysis or two-away Anova. I would like to know how to generate the letters of differentiation between treatments for the two factors. This…
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answer60
viewsHow to save a pdf of the statistical report generated with Expdes.pt package?
the code below generates a report in the R console which I want to export in a pdf, however I am not getting, I appreciate the help. library(ExpDes.pt) anova1 <- fat2.dbc(dados$fator1,…
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answers23
viewsNeed to test heterocedasticity before using the Kruskal-Wallis test
My question is whether or not to test heterodasticity before using the Kruskal-Wallis test. What I understand is that if I want to compare medians/mean, then I have to check for heterocedasticity,…
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answers96
viewsHow to determine a covariable in the ANOVA model (r)
I have the following model: modelo = aov(y ~ tratamento + idade, data = dt) How do I determine that the idade is a specific command, or the model understands the levels of the variable in question.…