Maybe this is a silly question, but it really made me confused. When use ChAMP to analyze EPIC methylation data, the SVD step will display the significant components of variation in the result heatmap. The components always include Sample Plate, Array and Slide. However, I don't know exactly what is Sample Plate, what is Array and what is Slide. As far as I known, a Slide contains several Arrays on it and each Array corresponds to a sample. Is it right? But what is Sample Plate and what is the relationship between these components?
Thank you so much.