Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
Please tell me exactly what you want plotted:
I am presuming that you have so far used Gnuplot with default parameters. And have gotten data points marked with + signs, on the graph.
I would guess that you want either lines between the data points, or actually the value of each data point placed upon the data point instead of a + sign... is that the case, and if so, which of the two cases is what you are looking for?