Removing display of row names from data frame

You have successfully removed the row names. The print.data.frame method just shows the row numbers if no row names are present.

df1 <- data.frame(values = rnorm(3), group = letters[1:3],                  row.names = paste0("RowName", 1:3))print(df1)#            values group#RowName1 -1.469809     a#RowName2 -1.164943     b#RowName3  0.899430     crownames(df1) <- NULLprint(df1)#     values group#1 -1.469809     a#2 -1.164943     b#3  0.899430     c

You can suppress printing the row names and numbers in print.data.frame with the argument row.names as FALSE.

print(df1, row.names = FALSE)#     values group# -1.4345829     d#  0.2182768     e# -0.2855440     f

Edit: As written in the comments, you want to convert this to HTML. From the xtable and print.xtable documentation, you can see that the argument include.rownames will do the trick.

library("xtable")print(xtable(df1), type="html", include.rownames = FALSE)#<!-- html table generated in R 3.1.0 by xtable 1.7-3 package -->#<!-- Thu Jun 26 12:50:17 2014 -->#<TABLE border=1>#<TR> <TH> values </TH> <TH> group </TH>  </TR>#<TR> <TD align="right"> -0.34 </TD> <TD> a </TD> </TR>#<TR> <TD align="right"> -1.04 </TD> <TD> b </TD> </TR>#<TR> <TD align="right"> -0.48 </TD> <TD> c </TD> </TR>#</TABLE>

Yes I know it is over half a year later and a tad late, BUT

row.names(df) <- NULL

does work. For me at least :-)

And if you have important information in row.names like dates for example, what I do is just :

df$Dates <- as.Date(row.names(df))

This will add a new column on the end but if you want it at the beginning of your data frame

df <- df[,c(7,1,2,3,4,5,6,...)]

Hope this helps those from Google :)

If you want to format your table via kable, you can use row.names = F

kable(df, row.names = F)