What is the meaning of Components in PLS-DA?

Hello jess.ewald

Nice answer! Now that Robin mention about the interpretation of PLS-DA results, could you please help me?

How should the graph D be interpretated? As the separation between 1 and 2&3 groups was in Component 1, for validating the PLS-DA model I only have to take in count the performance of Component 1 on graph D?

Thank you for your help!