Understanding presto::wilcoxauc group_by

Question

[aerlaut]

Hi,

I'm trying to understand the wilcoxauc function in the presto package. I have a Seurat object with 5 clusters. The data for the grouping is stored under the group name "clusters". If I run presto::wilcoxauc(..., group_by = "cluster"), does presto take a group (e.g. cluster 1) and compare it to the rest of the clusters (e.g. cluster 2-5)?