Code: Select all
visual=~c(a1,a1)*x1+c(a2,a2)*x2+x3
textual=~c(a4,a4)*x4+c(a5,a5)*x5+c(a6,a6)*x6
speed=~x7+c(a8,a8)*x8+c(a9,a9)*x9
Code: Select all
visual=~c(a1,a1)*x1+c(a2,a2)*x2+x3
textual=~c(a4,a4)*x4+c(a5,a5)*x5+c(a6,a6)*x6
speed=~x7+c(a8,a8)*x8+c(a9,a9)*x9