鼠标包的错误不明确 [英] Unclear error with mice package

问题描述

我正在使用mouses包对一些缺失值进行插值.我已经成功地在许多情况下成功使用了鼠标，没有任何问题.但是，我现在面临一个前所未有的问题，即在第一次迭代后，出现以下错误:

I'm using the mice package to interpolate some missing values. I've successfully been using mice in many cases without any problem. However I am now facing an unprecedented problem, that is, after the first iteration I get the following error:

mice(my_data)
iter imp variable
  1   1  sunlight
Show Traceback

 Rerun with Debug
Error in cor(xobs[, keep, drop = FALSE], use = "all.obs") : 'x' is empty 

我试图查看文档，但是找不到任何有用的东西.我在互联网上查找了错误，并找到了 https://stat.ethz.ch/pipermail/r-help/2015-December/434914.html ，但我找不到所描述问题的答案.

I have tried to look in the documentation but I cannot find anything useful. I looked up the error on the internet and found this https://stat.ethz.ch/pipermail/r-help/2015-December/434914.html but I was unable to find the answer to the problem described.

可悲的是，由于my_data包含我不拥有的私有数据，因此无法公开提供数据，因此我无法提供该数据的有效示例. my_data是dplyr数据帧，但是使用dplyr或基本"数据帧似乎没有什么区别.

Sadly I cannot provide a working example of the data since my_data contains private data that I do not own and therefore cannot make publicly available. my_data is a dplyr dataframe however it looks like there's no difference in using a dplyr or a "base" dataframe.

任何人都可以解释一下正在发生的事情以及(可能)如何解决它吗?谢谢.

Could anyone please explain me what is happening and (possibly) how to fix it? Thank you.

添加了有关回溯的更多信息:

added some more info on traceback:

cor(xobs[, keep, drop = FALSE], use = "all.obs") 
4 remove.lindep(x, y, ry, ...) 
3 sampler(p, data, m, imp, r, visitSequence, c(from, to), printFlag, 
    ...) 
2 mice::mice(my_data)

推荐答案

很有可能，数据输入中的某些列过于相关，以至于某些插补方法不适用.

Very possible, some columns in the data input are overly correlated that certain methods of imputation are not applicable.

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