Append lines of text above or below the dataframe in r -

i have huge data frame (dimension:600000 x 6). 6 columns integer values representing different features each row. add 3 lines of text either above or below data frame common rows. possible insert lines of text below or above data frame?

for example: given dataframe,

    name<-letters[1:10]     length<-c(140,50,25,120,156,146,180,98,120,110)     quality<-c(20,25,35,20,15,28,32,35,29,25)     df<-data.frame(name,length,quality) 

how insert 3 lines of text either above or below data frame,df:

    no. of reads = 10     %at=32     %gc=30 

the output should like:

      name length quality    1        140      20    2     b     50      25    3     c     25      35    4     d    120      20    5     e    156      15    6     f    146      28    7     g    180      32    8     h     98      35    9        120      29    10    j    110      25    no. of reads = 10    %at=32    %gc=30 

are looking this?

prettyprint <- function() {   print(df)   cat("no. of reads = 10",       "\n%at=32",       "\n%gc=30")  }  prettyprint() 

the output looks this:

   name length quality 1        140      20 2     b     50      25 3     c     25      35 4     d    120      20 5     e    156      15 6     f    146      28 7     g    180      32 8     h     98      35 9        120      29 10    j    110      25 no. of reads = 10  %at=32  %gc=30