为什么excel表格导入失败？

发文章时怎么引用决策链？

【新手必看】软件快速上手贴（持续更新）

Error in eval(family$initialize) : y值必需满足0 <= y <= 1

Error in gbm.unify(model, data):Models built on data with categorical features are not supported – please encode them before training.

Error in matchit(as.formula(formu), data = table.unmatched, method = inner_method, :请检查表格变量类型是否符需要转换，变量值是否需要插补空值，变量名是否存在非法字符！

Error in ifelse(decision_type %in% c(“>=”, “>”), ret.second(split_index), :Unknown decision_type