跨越多条线时，轴标签偏离中心

Question

我正在使用graph twoway scatter 并添加我自己的ylabels。

我经常有很长的标签并将它们分成多行。但是，当我想将 some 标签分成两行而不是其他行时，我遇到了问题。

当我这样做时，单行标签相对于它们的tick 标记偏离中心，好像 Stata 期望它们也有两行。

请看下面的简单说明：

sysuse auto, clear

/* This graph has one long label and one short but both are off-center 
relative to their tick marks */

twoway scatter length weight, ytitle("") ylabel(220 ///
`" "This one is a very long" "label, broken up" "' 140 "This one is not", ///
ang(horizontal))

/* The order of labels on the graph *does not* appear to matter */

twoway scatter length weight, ytitle("") ylabel(180 ///
`" "This one is a very long" "label, broken up" "' 220 "This one is not", ///
ang(horizontal))

/* But the order in the command *does* appear to matter */

twoway scatter length weight, ytitle("") ylabel(220 ///
"This one is not" 140 `" "This one is a very long" "label, broken up" "', ///
ang(horizontal))

这不是一个大问题，但我已经注意到了多年并且知道我的图表为什么会这样表现会很好。

Answer 1

尚不清楚究竟是什么原因造成的，但可以做出一个有根据的猜测。

看来，如果您更改代码以在double quotes 中包含所有strings，问题就会消失。使用您的玩具示例：

sysuse auto, clear

twoway scatter length weight, name(gr1) ytitle("") ylabel(220 ///
`" "This one is a very long" "label, broken up" "' 140 `" "This one is not" "', ///
ang(horizontal))

twoway scatter length weight, name(gr2) ytitle("") ylabel(180 ///
`" "This one is a very long" "label, broken up" "' 220 `" "This one is not" "', ///
ang(horizontal))

twoway scatter length weight, name(gr3) ytitle("") ylabel(220 ///
`" "This one is not" "' 140 `" "This one is a very long" "label, broken up" "', ///
ang(horizontal))

这可能与代码在内部的解析方式有关，并表明 Stata 期望第二个 string 与第一个具有相同数量的引号。

只有 StataCorp 可以明确回答您的问题，但希望以上示例能够为您提供有关正在发生的事情的线索。