Hello,

I have used the following data to draw my barplot:

BL         LR    Q

36.35    1.00   1.92
36.91    4.00   0.00
25.70    6.00   0.00
34.38    3.00   1.92
05.32    0.50   0.00

 BL<-c(36.35, 36.91, 25.70, 34.38, 05.32)
LR<-c(1.00, 4.00, 6.00, 3.00, 0.50)
Q<-<(1.92, 0.00, 0.00, 1.92, 0.00)

barplot(dt$LR, main='LR Value',  col='orange', border='black', space=0.05,
width=(dt$BL), xlab='Length', ylab='LR')

 axis(1)

I would like to do the following things that I don't know how to do it:

      1)      Writing the value of each 'BL' on my X axis.
2)      Writing the value of 'Q' on the bottom of  X axis.
3)      Draw a line on the bars which connects the 'LR' values.

 I appreciate your comments.

 Thanks,
Mohsen

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