added calculation of transformation matrix W for case "size(Y, 1)>size(Y, 2)"
added calculation of transformation matrix W for case "size(Y, 1)>size(Y, 2)"

SheffieldML/forkedGPmat,SheffieldML/forkedGPmat,SheffieldML/forkedGPmat,SheffieldML/forkedGPmat,SheffieldML/forkedGPmat,SheffieldML/forkedGPmat