做地理探测器的时候遇上了这样的问题，有大佬讲解一下我该在怎么改吗？
gdlist <- lapply(ESVlist, function(x){
  gdm(FVC ~ LUCC + DEM + Slope + Aspect + GDP + Topography + Population + Precipitation + Temperatures + NPP + Siol + Vegetation,
      continuous_variable = c("LUCC","DEM","Slope","Aspect","GDP","Topography","Population","Precipitation","Temperatures","NPP","Siol","Vegetation"),
      data = x,
      discmethod = "quantile",
      discitv = 12)
})

出现error是
Error in if (method == "equal") { : 需要TRUE/FALSE值的地方不可以用缺少值
此外: Warning message:
In max(op.qv, na.rm = TRUE) :
Error in if (method == "equal") { : 需要TRUE/FALSE值的地方不可以用缺少值

拜托了，有大佬知道这该怎么改吗