R - Vary by Row the Rounding of Digits Produced by knitr::kable -

i trying produce markdown table using knitr::kable rounding of digits varies rows. example, suppose have following data.frame:

example.df <- data.frame(a = c(0.1234, 2000), b = c(0.5678, 3000)) 

i'd create following markdown table, first row rounded 2 digits , second row rounded integer.

|    a|    b| |----:|----:| | 0.12| 0.57| | 2000| 3000| 

instead, seem able format entire columns.

library(knitr) kable(example.df, digits = c(2, 0)) 

which results in following markdown table:

|       a|    b| |-------:|----:| |    0.12|    1| | 2000.00| 3000| 

any advice on how produce markdown table in r has row-wise formatting of digits?

as pointed out @user20650, 1 solution consists in converting format of entries in dataframe in r before passing data knitr. done this:

example.df <- rbind(formatc(as.numeric(example.df[1,]),format="f",digits=2),                     formatc(as.numeric(example.df[2,]),format="d")) colnames(example.df) <- c("a","b") 

this gives following output:

> kable(example.df, align="r")  |    a|    b| |----:|----:| | 0.12| 0.57| | 2000| 3000|