On Sat, 3 Mar 2007 15:25:28 +0000 "Robin Menneer" <[EMAIL PROTECTED]> wrote: > Postscript. Found (eventually) at www.xru.org.index.asp a program > which I used on line (on a mac), is very simple, and apart from not > drawing the graph, did all I wanted, including giving me the points > for me to draw. It should be part of the Ubuntu package.
I've just discovered that oocalc may in fact do what you want, or at least a bit closer to it than I thought, if you select XY plot instead of line graph for the plot type (the next step lets you select between points or lines etc.) I've put a screenshot showing the icon for XY plot online at http://ormiret.com/foo/x-y.png since oocalc doesn't seem to display the name until after you click on the icon. This just draws straight lines between the points rather than higher order interpolation so if you don't have many points you might have to implement some form of interpolation in the spread sheet (I can't find any interpolation formulae in oocalc). I think this is proving complicated because although you have what seems like a fairly simple plotting problem it is quite rare for someone to want this without wanting to do other data processing steps and so using something like octave[1], or the numeric libraries for their programming language of choice[2]. You've unfortunately got a problem that lies just beyond what is easy with oocalc (unless joining the dots is sufficient). [1] http://www.gnu.org/software/octave/ [2] e.g. http://scipy.org/ for python ________________________________________________________ Robert McWilliam [EMAIL PROTECTED] www.ormiret.com Instructions should be read first, or not at all. Anything else is admitting defeat... -- ubuntu-uk@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-uk https://wiki.kubuntu.org/UKTeam/