Fix an issue with PLS and 1 response variable
Fix an issue with PLS and 1 response variable

Visomics/Visomics,Visomics/Visomics,arborworkflows/Visomics,Visomics/Visomics,arborworkflows/Visomics,arborworkflows/Visomics,arborworkflows/Visomics,arborworkflows/Visomics,arborworkflows/Visomics,Visomics/Visomics,Visomics/Visomics,Visomics/Visomics