The x direction explains 70.1% of the variance. y direction explains 8.5%. > In our case, three initial left-singular vectors contribute 70.1%, 8.5%, and 3.6%

The x direction explains 70.1% of the variance. y direction explains 8.5%. > In our case, three initial left-singular vectors contribute 70.1%, 8.5%, and 3.6% of the total variance of R, respectively.