How can I reduce row height in DT datatables

Question

I would like to be able to get 'slimmer' rows when rendering a DT datatable (ie decrease that height)

options(digits.secs=6)
library(data.table)
d = data.table(x = 1:10,time = as.POSIXct('2015-03-23 12:00:00.123'))
library(DT)
datatable(d)

Dissimilitude

You can use datatable(d, class="compact") – Verso

@Verso the only thing it appears to be doing is removing the nice highlighting. – Dissimilitude

Answer 1

If you add the pageLength= attribute you can set how many rows to show initially. And by adjusting the lengthMenu= c() you can also control the sizes of offered in the drop down, You can also turn search on or off with searching =FALSE

   library(DT)
    datatable(d, options=list(
       pageLength = 3,
       lengthMenu = c(2, 12, 18),
       searching= FALSE))%>%

   formatStyle( 0, target= 'row',color = 'black', backgroundColor = 'yellow', fontWeight ='bold', lineHeight='70%')

And by using the helper functions you can set the style just as you would in traditional CSS on a webpage. Notice the last one, line-height should adjust the row height.

Edited: I moved all the code together for you to see how it works. Sorry I was not clearer up front. The %>%is necessary as is devtools::install_github("rstudio/DT") version of DT.

Angelitaangell

sounds interesting, but was anybody able to reproduce that? =) – Monovalent

Sorry, I cut and pasted WITHOUT the import part...options=list() around the arguments. I have used it and it works. If you cannot get this to work, be sure you installed the devtools::install_github("rstudio/DT") version. – Angelitaangell

you can include any camelCase modified CSS style for the type this way... – Angelitaangell

@Angelitaangell Is it possible to adust the height of the header row and filter row similarly? – Fairish

@Fairish that is a very good question, I have not tried it before. Sorry about that one! – Angelitaangell

Answer 2

I found the above answer didn't work. My simpler solution found via https://rstudio.github.io/DT/010-style.html is to use:

DT::datatable(df) %>%
DT::formatStyle(names(df),lineHeight='80%') 

Sexy

The only difference in your solution is the use of pipes and the calling of DT using : . The formatStyle() is accomplished the same way. With properly called leaflet the :: is not needed, but scoping can be an issue depending on the order in which you call packages from your library. – Angelitaangell