r kable replace 0.0 with blank or "-" and keep it as numeric

Question

I have this little table:

cases <- c("1182025", "+19525")
deceased <- c("7639", "+25")
TI_7  <- c(1100.395332, 0.0)
    
df <- data.frame(cases, deceased, TI_7)

If I kable it, the 0.0 in the third column should not appear. If possible, the data type of the third column should remain numeric, otherwise decimal.mark = ',' does not work.

This is how I kable:

kbl(df, format.args = list(decimal.mark = ',', digits=6), align = "rccc") %>%
  kable_paper(bootstrap_options = "striped", full_width = F, position = "left")

I tried it with gsub, but then all the 0s disappear, inside the numbers too.

With other functions the data type changes to unknown.

Answer 1

Ok this seems to work:

df <- na_if(df, 0)
options(knitr.kable.NA = '')

kbl(df, format.args = list(decimal.mark = ',', digits=6), align = "rccc") %>%
  kable_paper(bootstrap_options = "striped", full_width = F, position = "left")