[Gnuplot-info] Creating a plot per data set

[Morten L. <mor...@no...>]

Hi,

I have a data file with several data sets (separated by double blank 
lines). The number of data sets is unknown on beforehand. I would like 
to create a separate plot of each of these (different color and title). 
An example in the manual (p. 80) showed me how to get a separate color 
for each data set:

plot "test.txt" using 6:5:(column(-2) + 1) with points linecolor 
variable title sprintf("Iteration: %d", (column(-2) + 1))

But it seems like this is just one plot with one title - matching the 
last data set. I have managed to get multiple plots using an iteration, 
but then I have to specify the exact number of iterations:

plot for [i=0:1] "test.txt" index i using 6:5:(column(-2) + 1) with 
points linecolor variable title sprintf("Iteration: %d", i + 1)

Is it possible to have separate plots per data set, without iterating 
over the data before plotting and counting the number of data sets?

Thanks,
Morten