R的直方图-x轴未正确居中 [英] Histogram in R - x-axis not centered properly

问题描述

我有一个通过简单输入而得出的值列表d的直方图

I have a histogram from a list d of values that I make by simply typing

hist(d)

这就是我得到的:

如何使x轴一直延伸到该图的原点(左下角)?为什么截止到-0.4?

How can I make it such that the x-axis extends all the way left to the origin of this plot (the bottom left corner)? Why does it cut off at -0.4?

推荐答案

到目前为止，宏的答案是最简单的方法.但是，如果您真的对hist的默认行为不满意(真的，我想这是axis的默认行为)，则始终可以抑制轴并自己绘制它们:

Macro's answer is by far the simplest route. However, if you really are unhappy with with the default behavior of hist (really, it's the default behavior of axis I suppose) you can always suppress the axes and draw them yourself:

set.seed(123)
d <- rnorm(1000)
hist(d,axes = FALSE)
axis(1,at = seq(-3,3,1),labels = TRUE,pos = 0)
axis(2,pos = -3)

至于为什么?"，绘制轴的默认值必须设置为某种值，因此，下面有很多代码试图确保轴和刻度标签为漂亮".不管是谁写的，它的敏感性.总的来说，我认为它做得很好，但是当然并非所有人都同意.

As for the "why?", the defaults for drawing axes have to be set at something, and so there's a lot of code under there that tries pretty hard to ensure that the axis and tick labels are "pretty" according to the sensibilities of, well, whoever wrote it. In general, I think it does a good job, but of course not everyone agrees.

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