[Gnuplot-info] Using title columnheader

[Frazer <pf...@mo...>]

Hi,

I generate data files consisting of x,y data for a number of different times.
I would like gnuplot to plot the data for each of the times, along with a title
that is something like "t=0.1".  So far I have been unsuccessful.  I would
appreciate suggestions.  I can write the data file in any format that works.

I am putting the data for each time sequentially in the file, with two blank
lines between data sets.  I am putting a line like

TIME "t=0.1"

at the start of each set.  In other words, the file looks like

TIME "t=0.1"
1  10
2  20
3  40


TIME "t=0.2"
1  20
2  30
3  53

and so forth.

I have tried to plot it with

plot "graph.dat" using 1:2:((column(-2)) lc variable title columnheader

This gives me the first (t=0.1) plot, with the correct title, but the remainder
of the sets are plotted but have no title.  I get a similar result with

set key autotitle columnhead
plot "graph.dat" using 1:2:((column(02)) lc variable

I am using gnuplot 4.4, patchlevel 0.

It seems this ought to be possible.  Any help would be appreciated.

Thanks.

Frazer