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subsurface/subsurface-core
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Linus Torvalds fcf1898b0c gas-model: add R compressibility script 
It annoyed me that we hand-waved a bit about how the virial factors were
actually computed in the gas-model.c file, so here's an actual R script
that computes them and plots the results.

You can run it with (for example):

    R --vanilla < compressibility.r

and it will generate a Rplots.pdf of the plots, and the coefficients
will be shown on stdout.

The result actually differs in insignificant ways from the values that
Lubomir computed, which is likely just due to tools.  I used R, Lubomir
seems to have used

    http://polynomialregression.drque.net/online.php

but the actual curve is pretty much the same.

NOTE! R is not entirely happy about the non-linear fit of the Helium
curve: the fit is *so* precise that it failes the R relative-offset
convergence criterion.  That is apparently generally a sign of
artificial data.

That is probably because Lubomir generated them from the linear mix of
two polynomial fits, rather than a linear mix of the original data.  But
maybe the original data was artificial?

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2016-03-13 08:32:21 -07:00
..
subsurface-qt Silence warnings in SettingsObjectWrapper.cpp 2016-03-07 16:45:16 -08:00
android.cpp Android: go back to using Qt's DataLocation 2015-11-07 10:52:19 -08:00
checkcloudconnection.cpp Switch to compile time connect syntax 2015-12-01 15:34:00 -08:00
checkcloudconnection.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
cloudstorage.cpp Silence warning about unused parameter 2016-03-07 11:00:27 -08:00
cloudstorage.h Fix usage of QString 2016-01-26 09:51:14 -08:00
CMakeLists.txt gas model: split up gas compressibility into a file of its own 2016-03-02 18:08:18 -08:00
cochran.c Silence warnings in cochran.c 2016-03-09 21:46:29 -08:00
cochran.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
color.cpp Move qt-ui to desktop-widgets 2015-10-30 10:36:49 -07:00
color.h Move qt-ui to desktop-widgets 2015-10-30 10:36:49 -07:00
compressibility.r gas-model: add R compressibility script 2016-03-13 08:32:21 -07:00
configuredivecomputer.cpp Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
configuredivecomputer.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
configuredivecomputerthreads.cpp Create a constructor with default parameters for some structs 2016-03-07 11:13:11 -08:00
configuredivecomputerthreads.h Remove unused headers 2016-01-22 06:50:06 -08:00
datatrak.c Silence warnings in datatrack.c 2016-03-09 11:44:20 -08:00
datatrak.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
deco.c Silence warnings in deco.c 2016-03-07 16:43:57 -08:00
deco.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
device.c Add option to allocate the samples in fake_dc() 2016-02-20 09:36:14 -08:00
device.h Add option to allocate the samples in fake_dc() 2016-02-20 09:36:14 -08:00
devicedetails.cpp Create a constructor with default parameters for some structs 2016-03-07 11:13:11 -08:00
devicedetails.h Create a constructor with default parameters for some structs 2016-03-07 11:13:11 -08:00
display.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
dive.c Clean up signedness confusion in dive.c 2016-03-09 21:46:58 -08:00
dive.h Remove unused function 2016-03-09 21:47:25 -08:00
divecomputer.cpp Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
divecomputer.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
divelist.c Clean up signedness confusion in divelist.c 2016-03-09 21:47:02 -08:00
divelist.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
divelogexportlogic.cpp Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
divelogexportlogic.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
divesite.c Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
divesite.cpp Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
divesite.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
divesitehelpers.cpp Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
divesitehelpers.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
equipment.c Silence warnings in equipment.c 2016-03-09 11:44:24 -08:00
exif.cpp Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
exif.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
file.c Silence warning in file.c 2016-03-09 21:47:04 -08:00
file.h Fix annoyances on file.c 2016-03-07 11:24:10 -08:00
gas-model.c gas model: use virial cubic polynomial form 2016-03-04 10:18:07 -08:00
gaspressures.c Silence warnings in gaspressures.c 2016-03-09 11:44:28 -08:00
gaspressures.h Revert "Clean up signedness confusion in gaspressures.h" 2016-03-10 07:40:15 -08:00
gettext.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
gettextfromc.cpp Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
gettextfromc.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
git-access.c Silence warnings in git-access.c 2016-03-09 11:44:30 -08:00
git-access.h Cloud storage: check the top commit without loading dives 2015-12-27 10:06:33 -08:00
gpslocation.cpp Simplify Q_FOREACH 2016-03-07 11:16:44 -08:00
gpslocation.h Random whitespace cleanup 2016-01-11 06:14:45 -08:00
helpers.h Don't use "get_volume_string()" for cylinder size string 2016-02-25 00:58:09 +01:00
imagedownloader.cpp If all else fails try loading images from cloud server 2016-01-10 14:12:36 -08:00
imagedownloader.h If all else fails try loading images from cloud server 2016-01-10 14:12:36 -08:00
isocialnetworkintegration.cpp Clean up more unused variables 2016-03-07 11:21:44 -08:00
isocialnetworkintegration.h Remove the PluginSystem 2015-11-09 18:00:56 -08:00
libdivecomputer.c Clean up signedness confusion in libdivecomputer.c 2016-03-09 21:47:07 -08:00
libdivecomputer.h Clean up handling of various include file 2016-03-06 11:03:00 -08:00
linux.c Silence warnings in linux.c 2016-03-09 21:47:43 -08:00
liquivision.c Silence warnings in liquivision.c 2016-03-07 16:34:17 -08:00
load-git.c Silence warnings in load-git.c 2016-03-09 11:44:38 -08:00
macos.c Clean up more unused variables 2016-03-07 11:21:44 -08:00
membuffer.c Silence warnings in membuffer.c 2016-03-09 11:44:41 -08:00
membuffer.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
metrics.cpp Clean up more unused variables 2016-03-07 11:21:44 -08:00
metrics.h Clean up more unused variables 2016-03-07 11:21:44 -08:00
ostctools.c simple spelling changes 2015-11-15 12:10:37 -08:00
parse-xml.c Clean up signedness confusion in parse-xml.c 2016-03-09 21:47:10 -08:00
planner.c Clean up signedness confusion in planner.c 2016-03-09 21:47:13 -08:00
planner.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
pluginmanager.cpp Make it possible to connect to facebook again 2015-11-08 09:44:40 -08:00
pluginmanager.h Remove empty implementations 2015-11-09 18:00:56 -08:00
pref.h Language Settings Wrapper 2016-01-24 21:26:45 -08:00
prefs-macros.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
profile.c Revert "Clean up signedness confusion in profile.c" 2016-03-10 07:37:18 -08:00
profile.h Revert "Clean up signedness confusion in profile.c" 2016-03-10 07:37:18 -08:00
qt-gui.h qt-gui.h shouldn't include QApplication 2016-03-06 11:03:00 -08:00
qt-init.cpp Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
qthelper.cpp Remove unused variable 2016-03-07 11:17:16 -08:00
qthelper.h Remove unused variable 2016-03-07 11:17:16 -08:00
qthelperfromc.h Remove the non-canonical Subusrface version 2015-12-20 07:59:50 -08:00
qtserialbluetooth.cpp Silence warnings in qtserialbluetooth.cpp 2016-03-09 21:47:41 -08:00
save-git.c Silence warnings in save-git.c 2016-03-09 11:44:48 -08:00
save-html.c Silence warnings in save-html.c 2016-03-09 11:44:51 -08:00
save-html.h Support for imperial depth on worldmap export 2016-01-10 14:13:58 -08:00
save-xml.c Silence warnings in save-xml.c 2016-03-09 11:44:54 -08:00
serial_ftdi.c ftdi: fix memory leak on error 2015-12-27 21:31:13 -08:00
sha1.c Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
sha1.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
statistics.c Clean up signedness confusion in statistics.c 2016-03-09 21:47:22 -08:00
statistics.h Clean up signedness confusion in statistics.c 2016-03-09 21:47:22 -08:00
strndup.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
strtod.c Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
subsurfacestartup.c Remove unused function 2016-03-09 21:47:25 -08:00
subsurfacestartup.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
subsurfacesysinfo.cpp Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
subsurfacesysinfo.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
taxonomy.c Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
taxonomy.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
time.c Clean up signedness confusion in time.c 2016-03-09 21:47:28 -08:00
uemis-downloader.c Clean up UEMIS downloader 2016-03-09 21:47:36 -08:00
uemis.c Clean up UEMIS downloader 2016-03-09 21:47:36 -08:00
uemis.h Clean up UEMIS downloader 2016-03-09 21:47:36 -08:00
units.h Clean up signedness confusion in dive.c 2016-03-09 21:46:58 -08:00
version.c Introduce separate version number for Subsurface-mobile 2016-03-05 17:00:14 -08:00
version.h Introduce separate version number for Subsurface-mobile 2016-03-05 17:00:14 -08:00
webservice.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
windows.c Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
windowtitleupdate.cpp Don't crash if we have no WindowTitleUpdater registered 2015-11-07 09:53:17 -08:00
windowtitleupdate.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
worldmap-options.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00
worldmap-save.c Silence warnings in worldmap-save.c 2016-03-09 11:44:57 -08:00
worldmap-save.h Move all core-functionality to subsurface-core 2015-10-30 10:36:48 -07:00