I wanted to get some clarification on the suggested differential to use for plotting features in Qurro. The formula I used for songbird had a variable of ‘facility’ which contained three groups. The songbird model created differentials for the intercept, facility(T:2), facility(T:3). My understanding of the differentials is that the intercept are the zero interactions, and the others are facility 1 as the reference compared to facility 2 and 3, respectively. My question is, when manipulating the plot in qurro to look for differential abundant taxa between my facilities, should I use the intercept differential or the facility(T:2) and facility(T:3) differentials?