"Tom Van Baak" <[EMAIL PROTECTED]> wrote: > If anyone has other favorite plotting methods, please let > us know.
Although I use and favor gnome as my desktop, I've been using kde's kst plotting package. It is not bad, which for me, discussing a software package, is an above average endorsement. There are some rough edges, for sure, but it draws nice plots, handles multiple data files and live file updates fairly well, and has some OK fitting and filtering capabilities. (It is pluggable, too -- one could imagine an adev plugin.) See the attached png for an example(1). The rest of my kit includes stable32 and a bunch of perl, awk and C++ code. I'd like to put a proper set of tools together out as a package some day. Incidentally, I've found that it is important to be quite careful with your floating point handling when representing a quantity of seconds with picosecond resolution in an IEEE 64-bit float. This is where exact float support or a big float package comes in handy. Some languages may support exact/big floats natively (some scheme implementations, nickel[sic]). For others, support is often in a library. Math::BigFloat does the trick for Perl. See the attached perl file, which does 5313x conversion without any loss of any precision. An explicit rational representation also works, but it is handy to have a library or language support to handle the arithmetic as it is tricky to get it both right and fast. For C++, boost's rational support is quite good (as is most everything in boost). -ch (1) The anomaly in the plot is something that hit all my gps receivers, including 2 Z3801a's, an m12+, and, as in the graph, an m12t. Odd, huh?
hp5313x.pl
Description: Binary data
kst-eg_1.png
Description: PNG image
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