Hi, While doing matest, i got errors like tis.Can u please help me in solving these errors. test.all = matest(madata, fit.full.mix, test.method=c(1,1), + shuffle.method="sample", term="Treatment",n.perm=100) Doing F-test on observed data ... Error in ma.svd(X, method = "dgesvd") : infinite or missing values in 'x' In addition: Warning messages: 1: In FUN(newX[, i], ...) : coercing argument of type 'double' to logical 2: In FUN(newX[, i], ...) : coercing argument of type 'double' to logical 3: In FUN(newX[, i], ...) : coercing argument of type 'double' to logical 4: In FUN(newX[, i], ...) : coercing argument of type 'double' to logical 5: In digamma(df/2) : NaNs produced 6: In digamma(df/2) : NaNs produced 7: In digamma(df/2) : NaNs produced 8: In digamma(df/2) : NaNs produced Shabnam K. [[alternative HTML version deleted]]