调查设计统计分析结果没有P值怎么办

Error in if (series_types_datafarme$type[series_types_datafarme$var == : argument is of length zero

在回归分析中，如何修改分类变量的参照/参考/ref因子

环境缺失：Error in library(XXXXX)

Error in readRDS(model URl port) : ‘file’◆◆◆◆◆◆◆

Lasso回归-生存状态：Error in coxnet(xd, is.sparse, ix, jx, y, weights, offset, alpha, nobs, :NA/NaN/Inf in foreign function call (arg 4)

Mimic数据提取：Exception while reading from stream