Package: engauge-digitizer
Version: 4.1-1
Severity: important
I just digitized some curves that did not all cover the same range of
X values. When I plotted the results, I found that engauge had added
bogus data points so all the functions were defined over the same
range. What are those values, anyway? Linear extrapolations?? Does
it also linearly interpolate? That certainly would not have been
valid for some of my curves. I expected a one-to-one correspondence
between the data points on the display and the values in the exported
file. It can be serious if it leads to unintentionally
misrepresenting published data. Hence the "important" severity.
This may be a result of the ".csv" export data format, which has only
one column for X values. Please:
At least, for missing data, use Y=999 or some other identifiable
value (preferably user-setable).
Better, add an export format that doesn't have an "undefined
value" problem. For example: N1 lines with X and Y values for the
first curve, a blank line, then N2 lines with X and Y values for the
next curve. (Gnuplot would accept that format.)
- Jim Van Zandt
-- System Information:
Debian Release: 4.0
APT prefers unstable
APT policy: (990, 'unstable'), (500, 'oldstable'), (500, 'testing'), (500,
'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.17
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)
Versions of packages engauge-digitizer depends on:
ii fftw3 3.1.2-1 library for computing Fast Fourier
ii libc6 2.5-5 GNU C Library: Shared libraries
ii libfreetype6 2.2.1-5 FreeType 2 font engine, shared lib
ii libgcc1 1:4.1.2-5 GCC support library
ii libqt3-mt 3:3.3.7-4+b1 Qt GUI Library (Threaded runtime v
ii libstdc++6 4.1.2-5 The GNU Standard C++ Library v3
ii libx11-6 2:1.0.3-4 X11 client-side library
ii libxext6 1:1.0.1-2 X11 miscellaneous extension librar
ii libxft2 2.1.8.2-8 FreeType-based font drawing librar
engauge-digitizer recommends no packages.
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