Re: [R] BLUP with missing data

Sorry, I sent it quickly and forgot to thank in advance Marcio Marcio Resende wrote: > > hello guys, I need to do a BLUP in the simplest model > y = Xm + Zg + e > however I have missing data in the analysis which I can´t consider as > 0(zero). So I need to generate the matrix X'Z, Z'X and Z'Z

[R] BLUP with missing data

hello guys, I need to do a BLUP in the simplest model y = Xm + Zg + e however I have missing data in the analysis which I can´t consider as 0(zero). So I need to generate the matrix X'Z, Z'X and Z'Z step by step; I can´t use crossprod(x) #neither X'X <- t(x)%*%x because I should skip the element