我按照这个例子:
https://www.2021.ai/randsharkmachinelearning/
在R上运行此命令时:
sharkFit <- SharkRFTrain(X, Y, nTrees = 100)
我明白了:
Error in SharkRFTrain(X, Y, nTrees = 100) :
Should not call this. Fix the random numbers generator if you need this. 478
从这个“cpp”行抛出此异常:
trainer.train(model, trainData);
我怀疑原因写在这里:
https://github.com/aydindemircioglu/RcppShark#notes
The random number generator was replaced, as R packages must use the random generator from R and not the C/C++ internal one. Thereffore, a direct comparison of results of algorithms that depend on (pseudo) random numbers cannot be done.
有没有办法缓解这种情况?
尝试了两个R版本:3.4.1,3.3.2
最佳答案
我对此进行了调查,并将其缩小到某种程度:
>此处生成错误消息:https://github.com/aydindemircioglu/RcppShark/blob/master/src/shark/Rng/Runif.h#L71
>主叫代码在这里:https://github.com/aydindemircioglu/RcppShark/blob/master/src/src/Algorithms/RFTrainer.cpp#L178
由于我无法修复它,我在这里开了一个问题:https://github.com/aydindemircioglu/RcppShark/issues/1
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