Wait for gnuplot to finish plotting before continuing

[Tim Hessint]

Hi,

I need to plot inside a loop so I can see a plot evolving over time. The old 
octave would wait for plotting to finish before moving on to the next command, 
but octave-3 doesn't wait for the plot to finish. The loop goes faster than 
gnuplot can plot so I don't see anything except for the last plot. For example, try

for i = 1:10
        plot(1:i)
        i
end

and you will only see it count to 10 and then plot 1:10 instead of plotting 1:1, 
1:2, 1:3, etcetera. I can insert sleep(1) commands to make it work but this is a 
poor solution.

So basically I'd like to tell octave to wait for gnuplot to finish before 
continuing.