search for: byy

...a 2-D grid n <- 10 tx <- matrix(seq(-pi, pi, length.out = 2*n), 2*n, n) ty <- matrix(seq(-pi, pi, length.out = n) / 2, 2*n, n, byrow = T) xx <- cos(tx) * cos(ty) yy <- sin(tx) * cos(ty) zz <- sin(ty) zzz <- zz bxx <- xx+5 byy <- yy+5 bzzz <- zzz+5 xx=rbind(xx,rep(NA,n),bxx) yy=rbind(yy,rep(NA,n),byy) zzz=rbind(zzz,rep(NA,n),bzzz) gr<-rbind(matrix(1,n,2*n),rep(NA,n),matrix(2,n,2*n)) wireframe(zzz ~ xx + yy, groups=gr,col.groups=c("red","blue")) I tried variou...

...g) As one example, I have data for size class (SC) one I can insert after IndID #4 in the data above. However, when I attempt to merge these two data frames using the following commands: "Hs.full.anal<-merge(Hs.short.missgval,SC1_0608, byx=c(Cave,Year,Month,Region,Plot,IndID), byy=c(Cave,Year,Month,Region,Plot,IndID))" I get the following message: "WARNING: Warning in `[<-.factor`(`*tmp*`, ri, value = c(1L, 1L, 1L, 1L, 1L, 1L, 1L, : invalid factor level, NAs generated" Can anyone tell me what this means and how I might fix it? Cheers Kurt *************...