how to set contrast in r how to make contrast with mice how to do contrast r r what is the contrast in mouse model what is the contrast for each condition r what does contrast do in r r model.matrix and make contrast which r model contains the main effect of each tissue and its interaction and contrast? how to make contrast in r what is contrast of condition what is the r model that is used to compare contrasts what is the purpose of contrast which of the following describes the contrast i make in the model design r? r compare two tissue designs r model contrast how to set contrast in r what is the contrast in biocompact how to do r contrast what is the difference between contrast and contrast how do you get the main effect of condition in mouse