在 R-markdown 中显示 tibble 的所有行和列

我正在处理 R 降价文件.分析结果以tibble的形式显示，但为了看到所有的列和行，我需要点击展开.但是，由于我要将文件编织成 html，因此我需要显示 R markdown 文件中的所有列和行.我进行了搜索并得出了以下代码:

I'm working on an R markdown file. The results of analysis are shown in the form of tibble but in order to see all the columns and rows, I need to click to expand. However, since I'm going to knit the file into html, I need to display all the columns and rows in the R markdown file. I did a search and came up with the following codes:

options(tibble.width = Inf) # displays all columns.
options(tibble.print_max = Inf) # to show all the rows.

但是，我不知道把它们放在哪里.我把它们放在我的代码之前和之后，但没有用.我的代码是:

However, I don't know where to put them. I placed them before and after my code, but it didn't work. MY codes are:

1. head(df)
2. summarise(mean_cov= ...,median_cov=...., sd_cov=...., ...)

谢谢.