Sinister plots

I have been monitoring a message system for a while. I have 1000 data samples, each sample has a timestamp and a message count at that point in time. The count is ever-increasing. Can you recommend a tool to produce an interesting, pretty graph that shows activity over time? I'm familiar with gnuplot but don't like the output or the user interface much.

Comments

Is that easy to use and pretty?
sorry, I have no clue how Octave handles. I guess the graphs are scientifically accurate and clean, but they might not win beauty contests ;)

April 2015

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