R中的xgboost（）出错

Question

I am trying to use xgboost(), but I am getting following error:

Error in xgb.DMatrix(data, label = label) : can not open file "0"

If I traceback,

traceback()
4: .Call("XGDMatrixCreateFromFile_R", data, as.integer(FALSE), PACKAGE = "xgboost")
3: xgb.DMatrix(data, label = label)
2: xgb.get.DMatrix(data, label)
1: xgboost(data = as.matrix(trainSet[, 1:13]), label = trainSet[, 
"count"], max.depth = depth, nround = rounds, objective = "reg:linear", 
verbose = 0) at #5

Any reason why I am getting the above error. I would appreciate any kind of help.

Thanks in advance!

Answer 1

检查您的数据是否包含字符或因子变量，并尝试将它们转换为数字。