XRF analysis - recalculating results For TAS diagram plot, one need to recalculate Major oxide data (NaO, K2O, SiO2).

Do one need to recalculate the ppms of Zr,Nb and Y and % of TiO2 for Zr/TiO2 vs Nb/Y diagram plotting for rock classification?
It is best to recalculate all major oxide (including TiO2), trace elements are not important. No need to recalculate them.