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After double clicking the icon GCDkit opens
“RConsole”, a text window serving for entry of commands as well as
display of textual output.
In addition, during the session are typically opened one or more graphical windows.
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Please note that the GCDkit menu appears right
of the menus of the R system itself.
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The interactions built in many plots (most commonly data point identification)
can be stopped from menu that appears after pressing the right mouse button. If experiencing
problems, the computation/plotting can be interrupted anytime by hitting
Esc or from the menu (
Misc|Stop current computation).
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More immediate response is obtained when print buffering
(Misc|BufferedOutput) is disabled.
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The errors encountered while running the
GCDkit
system and displayed in the
Console are (mostly) not fatal. In majority of the cases it means that the
command can be re-run (one can simply press the up/down arrows in the Console to scroll
through the commands history), entering/modifying the parameters that
caused the crash. If the problem persists, record the details and
send the data file to us, so we can fix the bug.
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This GCDkit
was build in
R version 2.13.0. Due to the
quick developments in the R project, the correct function with any other
version cannot be guaranteed!
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GCDkit
requires the R packages
base, stats, methods, utils, graphics, MASS, foreign, grid
and lattice
to be installed (which is normally the case).
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Recommended are also packages
RODBC enabling import and export into the MS
Excel, Access and dBase formats and R2HTML
serving for output into HTML format and sp
for spatial analysis of the data.
They are both part of our binary
distribution of GCDkit
(i.e., that with the Windows installer) but
if need be, they can be uploaded via the menu
Packages|Install package(s) from
CRAN
(online Internet connection required).
Offline installation is also possible: zip file
downloaded from the CRAN site can be installed latter via menu
Packages|Install package(s) from local zipfiles.
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Note that recommended systems
to run GCDkit are Windows 2000/NT/XP/Vista/7, even though the latter two are to be preferred. Try to keep the number of open graphical windows to a necessary minimum), as the R may become instable,
failing to redraw graphical windows if too many of them are being open. It
is always a good idea to close the unnecessary ones, for instance using
the function graphicsOff() or the corresponding item
from the menu GCDkit.
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PostScript output should be given preference to
WMF (Windows metafiles) or copying via clipboard, as the latter two
methods lead sometimes to distortions of the graphs. For saving
simply right-click the graphical window and select the desired format.
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The use of special symbols or accented characters (such as in some East
European languages) is mostly okay but it may also sometimes cause unexpected
problems. So please be sensible, especially in the variable names.