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I'm using xtable to create a table in a HTML document in rmarkdown, the problem I have is that the output table is align to the left and I need it to be center. I tried with the kable package but then the table is to wide. The question is if there is a way to center tables in an HTML document, something like fig.aling = 'center' but for tables that doesn't require LaTex.

Alejandro Andrade
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  • Im sure there will be an option but i dont know it offhand, but a quick fix is to add a little html: `tab = capture.output(print(xtable(mtcars[1:2, 1:4]), type="html", only.contents=TRUE)) ; cat(c('', tab, '
    '), sep="\n")`     – user20650 Aug 11 '17 at 14:18
  • actually, there may be a way setting `html.table.attributes` argument : `print(xtable(mtcars[1:2, 1:4]), type = "html", html.table.attributes=list('align="center", border=1' ))` . See tertra's answer https://stackoverflow.com/questions/20200082/formatting-html-table-in-r – user20650 Aug 11 '17 at 14:34
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    @user20650 your second comment works perfect, if you want make it an answer and i'll accept it. Thanks – Alejandro Andrade Aug 11 '17 at 17:00

1 Answers1

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Taking inspiration from Formatting html table in R , you can add table attributes using the html.table.attributes argument of print.xtable.

So for example: 

```{r, results='asis'}

library(xtable)

print(
   xtable(mtcars[1:2, 1:4], align="lcccc"), # align columns
   type = "html", 
   html.table.attributes = 'align="center", # center table in page
                            rules="rows",   # only keep horizontal rows
                            width=50%,      # increase table width to 50% page
                            frame="below"') # remove border except bottom rule

```
user20650
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