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You can plot your cumulative graph to a file, and then use those modified data as you would with a regular data file. To access the labels to can use the paste command and make use of extra columns:

set table "cumulative_labels" plot 'data.txt' u 1:2:3 smooth cumulative w labels set table "cumulative_data" plot 'data.txt' u 1:2 smooth cumulative unset table plot 'cumulative_data' u 1:2 w l, \ "< paste cumulative_labels cumulative_data" u 4:5:3 w labels offset 1 

You can plot your cumulative graph to a file, and then use those modified data as you would with a regular data file. To access the labels to can use the paste command and make use of extra columns:

set table "cumulative_labels" plot 'data.txt' u 1:2:3 smooth cumulative w labels set table "cumulative_data" plot 'data.txt' u 1:2 smooth cumulative unset table plot 'cumulative_data' u 1:2 w l, \ "< paste cumulative_labels cumulative_data" u 4:5:3 w labels offset 1 

Edit:

gnuplot-only way to do this, with no intermediate files, but dropping the smooth cumulative option:

sum = 0. plot "data.txt" u 1:2 s cum, "" u (sum = sum + $2, $1):(sum):3 w labels offset 1 

You can plot your cumulative graph to a file, and then use those modified data as you would with a regular data file. To access the labels to can use the paste command and make use of extra columns:

set table "cumulative_labels" plot 'data.txt' u 1:2:3 smooth cumulative w labels set table "cumulative_data" plot 'data.txt' u 1:2 smooth cumulative unset table plot 'cumulative_data' u 1:2 w l, \ "< paste cumulative_labels cumulative_data" u 4:5:3 w l w labels offset 1 

You can plot your cumulative graph to a file, and then use those modified data as you would with a regular data file. To access the labels to can use the paste command and make use of extra columns:

set table "cumulative_labels" plot 'data.txt' u 1:2:3 smooth cumulative w labels set table "cumulative_data" plot 'data.txt' u 1:2 smooth cumulative unset table plot 'cumulative_data' u 1:2 w l, \ "< paste cumulative_labels cumulative_data" u 4:5:3 w labels offset 1 

You can plot your cumulative graph to a file, and then use those modified data as you would with a regular data file:

set table "cumulative" plot 'data.txt' u 1:2:3 smooth cumulative w labels unset table plot 'cumulative' u 1:2 w l, "cumulative" u 1:2:3 w l w labels offset 1 

You can plot your cumulative graph to a file, and then use those modified data as you would with a regular data file. To access the labels to can use the paste command and make use of extra columns:

set table "cumulative_labels" plot 'data.txt' u 1:2:3 smooth cumulative w labels set table "cumulative_data" plot 'data.txt' u 1:2 smooth cumulative unset table plot 'cumulative_data' u 1:2 w l, \ "< paste cumulative_labels cumulative_data" u 4:5:3 w l w labels offset 1