Francesco Poli wrote:
Please consider the following example.
$ cat foo.txt
100.5 95.5
101.5 96.5
102.5 95.5
101.5 90.5
$ xmgrace -block foo.txt -settype xyz -bxy 1:2:0
Then, in the "Set Appearance" dialog window, "main" tab,
enable "Annotate values" and, in "Ann. values" tab,
set Type "Z". Click on the "Accept" button.
You get your data plotted with line numbers as value
annotations, as expected and desired.
OK, now suppose that I failed to forecast this need
in the first place.
I just ran the following command:
$ xmgrace -block foo.txt -bxy 1:2
Is there a way to get the above described annotated
values, *without* reloading foo.txt from scratch?
E.g., Edit/Data sets, change the set type to "XYZ". Then go to
Data/Transformations/Evaluate expression, select the set as both source
and destination, and enter "y1 = mesh(s$.length)" as the formula.
In general, you have a higher chance to be heard/answered if you post
your questions directly to the Grace forums:
<http://plasma-gate.weizmann.ac.il/Grace/phpbb/>.
Regards,
Evgeny
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