rstudio/gt

`cols_align_decimal()` does not work for scientific numbers

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#1,672 创建于 2024年5月21日

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 (0 评论) (0 反应) (1 负责人)R (2,146 star) (222 fork)batch import
Difficulty: [2] IntermediateEffort: [2] MediumFocus: HTML OutputGood First IssuePriority: [3] HighType: ☹︎ Bug

描述

When I apply cols_align_decimal() to a column that was formated using fmt_scientific(), the decimal point is not aligned (for rows where the power of 10 part is missing).

Reprex:

library(gt)
exibble["num"] |>
  gt() |>
  fmt_scientific() |>
  cols_align_decimal()

image

贡献者指南

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无
领域
data
议题类型
bug
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
1-3 hours
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
blocked
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
R programminggt package basics
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
30
研究方向
Investigate how `cols align decimal()` determines the position of the decimal point in formatted strings. Compare the output of `fmt scientific()` for numbers with and without an exponent part. The issue is that numbers without an exponent (e.g., 1.23) are not aligned because the function likely only looks for a decimal point and does not account for missing exponent padding. Examine the source files `R/cols align decimal.R` and `R/fmt scientific.R` to understand the logic. Consider adding a fallback to pad the string with spaces for the missing exponent part or adjust the text processing to handle both cases.
`cols_align_decimal()` does not work for scientific numbers · rstudio/gt#1672 | Good First Issue