Test for differential expression for 3 groups
Now that you've specified the design matrix and the contrasts matrix, you can test for differential expression.
Este ejercicio forma parte del curso
Differential Expression Analysis with limma in R
Instrucciones del ejercicio
The ExpressionSet object eset
with the hypoxia data, the design matrix (design
), and the contrasts matrix (cm
) have been loaded in your workspace.
Fit the model coefficients with
lmFit
.Fit the contrasts with
contrasts.fit
.Calculate the t-statistics with
eBayes
.Summarize the results with
decideTests
.
Ejercicio interactivo práctico
Prueba este ejercicio completando el código de muestra.
# Load package
library(limma)
# Fit the model
fit <- ___(eset, ___)
# Fit the contrasts
fit2 <- ___(fit, contrasts = ___)
# Calculate the t-statistics for the contrasts
fit2 <- ___(fit2)
# Summarize results
results <- ___(fit2)
summary(results)