Group_rows not working properly for longer latex table

[Jaeoc]

Hello!

I'm really liking your package, but have run into an issue when trying to group by rows in a slightly longer latex table. When using the group_rows on a row starting on row 17 or beyond, this has no effect on the table when knitting to pdf, i.e. the table is produced as if that line of code didn't exist. It works perfectly fine when knitting to HTML.

The code I'm using looks like this, and I've tried both the CRAN-version and the github version of the kableExtra package.

library(knitr)
library(kableExtra)

kable(marginal$table, caption = "Table 1", booktabs = T, align = "c") %>%
  kable_styling() %>%
  group_rows("Other data", 11, 16) %>%
  group_rows("Our data", 17, 22)

[haozhu233]

Hi, @Jaeoc, thanks for reporting this bug. In fact, I just fixed a very similar bug last night which causes similar behavior when you have symbols like % present. Can you try to re-install from github and let me know if this bug has gone away?

[Jaeoc]

Hi,

it seems like I was mistaken with what the cause of the problem was. I fiddled around with the mtcars dataset to try to reproduce the issue, and it seems to have to do with the structure of the dataframe used for the table. In my original table I had some variables where I'd used paste0 to create columns with two values, one being in parentheses, like so: "3452 (3.2)". It appears that for those rows where this is the case, the group_rows function does not work. The code below reproduces this for the mtcars dataset. Not sure what the problem is exactly though, since there is no problem if I just force a column to be a factor or character value...

library(knitr)
library(kableExtra)
for (i in 1:nrow(mtcars)) {
  mtcars$hp[i] <- paste0(mtcars$hp[i], " (", 1, ")")
}
kable(head(mtcars, n = 20), caption = "test", booktabs = T) %>%
  kable_styling() %>%
  group_rows("these rows", 4, 16) %>%
  group_rows("Those rows", 17,20)

[haozhu233]

I see. I just reproduced the error. I know where the problem is but the fix is a little tricky. I'll see what I can do.

[haozhu233]

Hi, @Jaeoc, I just fixed the bug. Do you want to try out the latest github version and let me know the results?

[Jaeoc]

Hi, just tried it out, and now it works nicely. Appreciate the quick fix :)