R：“解释”时出现石灰错误

Question

我不知道为什么，对于那个简单的例子，我无法让Lime工作。这是显示问题的独立代码：

data(Theoph)

library(caret)

outcomeName <- 'conc'
predictors<-names(Theoph)[!names(Theoph) %in% outcomeName]

model_gbm <- train(Theoph[,predictors],Theoph[,outcomeName],method='gbm')

library(lime)
library(tidyr)

explainer_caret <- lime(x = as.data.frame(Theoph[, predictors]), model = model_gbm, n_bins = 10)

explanation_caret <- explain(
  x = as.data.frame(Theoph[c(1), predictors]), 
  explainer = explainer_caret, 
  dist_fun = "gower",
  kernel_width = NULL,
  n_features = 2, 
  feature_select = "auto"
)

glm.fit（x = x_fit，y = y，weights = weights，family = gaussian（））错误：   NA / NaN / Inf in'y'

有任何想法/建议吗？