本文介绍了对于具有NULL名称的对象的all.equal导致“错误:与STRSXP不兼容” - 错误或预期?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

在下面的示例中,当名称设置为 NULL 时, all.equal throws 错误:与STRSXP不兼容

但是,如果名称设置为 NA (或其他一些值) , all.equal 正常工作。

这是预期的行为还是一个错误?

In the example below, when names are set to NULL, all.equal throws 'Error: not compatible with STRSXP'
However, if names are set to NA (or some other value), all.equal works as normal.
Is this expected behavior or a bug?

## SAMPLE DATA
set.seed(1)
x <- data.frame(LETTERS[1:3], rnorm(3))
names(x) <- NULL

x
#   NA        NA
# 1  A -0.626454
# 2  B  0.183643
# 3  C -0.835629

all.equal(x, x)
# Error: not compatible with STRSXP

# add names back in, even 'NA'
names(x) <- c(NA, NA)
all.equal(x, x)
# [1] TRUE


推荐答案

正如@Joran指出的,这似乎与 dplyr
提出问题:

As @Joran points out, this seems to be related to dplyr. Filed as an issue: https://github.com/hadley/dplyr/issues/219

临时工作(至少我的需要,不适用于所有)是使用

Temporary work around (for my need at least. Will not work for all) is to use

 all.equal.default(x, x)

FYI: / p>

FYI:

  ## STARTING FROM A FRESH SESSION:

  set.seed(1)
  x <- data.frame(LETTERS[1:3], rnorm(3))
  names(x) <- NULL

  all.equal(x, x)
  # [1] TRUE

  ## Load in dplyr
  library(dplyr)
  all.equal(x, x)
  # Error: not compatible with STRSXP

这篇关于对于具有NULL名称的对象的all.equal导致“错误:与STRSXP不兼容” - 错误或预期?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

11-02 20:28