Hyper graph

for my rotor dynamics project i have to take magnitude values . when i import .pch file to hypergraph it showing only x,y,and z values only , how can i take magnitude values.. i applied load in z dirextion and rotor rotation in x direction so i have plot for magnitude.. i am doing 112 sol.. transient response.magnitude means root of x2 +y2+z2. ryt? pls guide me