I am trying to run the 'res.multisplit' function from the hierGWAS package on some preliminary genotype data I have. Upon running the line ' res.multisplit <- multisplit(genomatrix,phenotypevector,covar = covarsmatrix)', the program completes with 21 identical warnings, all reading 'In lognet(x, is.sparse, ix, jx, y, weights, offset, alpha, ... : one multinomial or binomial class has fewer than 8 observations; dangerous ground'. I can't seem to figure out why I am receiving this error?
'genomatrix' is my genotype matrix of 36 x 15084, all coded with 0, 1, and 2
'phenotypevector' is my phenotype data vector of 36 length, coded with 0, and 1
'covarsmatrix' is 2 covariates I have in a matrix of 36 x 2 (these are continuous)
R version 3.4.1 (2017-06-30)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 16.04.4 LTS
Any help is much appreciated, thanks!