苹果/安卓/wp
Warning messages:1: In Ops.factor(y, x %*% z$coef) : ‘-’ not meaningful for factors2: In Ops.factor(y, fit$residuals) : ‘-’ not meaningful for factors
在用quantreg做回归时出现下面的警告,不明白是哪里出了问题
检举 |2017/05/11 20:31
jiangbeilu