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fitsection).
This is useful for saving the current values for later use or for restarting
a converged or stopped fit.
Syntax:
update <filename> {<filename>}
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If a second filename is supplied, the updated values are written to this file, and the original parameter file is left unmodified.
Otherwise, if the file already exists, gnuplot first renames it by
appending .old and then opens a new file. That is, "update 'fred'"
behaves the same as "!rename fred fred.old; update 'fred.old' 'fred'".
[On DOS and other systems that use the twelve-character "filename.ext"
naming convention, "ext" will be "old" and "filename" will be related
(hopefully recognizably) to the initial name. Renaming is not done at all
on VMS systems, since they use file-versioning.]
Please see fit for more information.
Several graphical user interfaces have been written for gnuplot and one for
win32 is included in this distribution. In addition, there is a Macintosh
interface at
ftp://ftp.ee.gatech.edu/pub/mac/gnuplot |
Floating point exceptions (floating point number too large/small, divide by
zero, etc.) may occasionally be generated by user defined functions. Some of
the demos in particular may cause numbers to exceed the floating point range.
Whether the system ignores such exceptions (in which case gnuplot labels
the corresponding point as undefined) or aborts gnuplot depends on the
compiler/runtime environment.
The bessel functions do not work for complex arguments.
The gamma function does not work for complex arguments.
As of gnuplot version 3.7, all development has been done using ANSI C.
With current operating system, compiler, and library releases, the OS
specific bugs documented in release 3.5, now relegated to old_bugs, may
no longer be relevant.
Bugs reported since the current release may be located via the official distribution site:
ftp://ftp.dartmouth.edu/pub/gnuplot
http://www.cs.dartmouth.edu/gnuplot_info.html
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Please e-mail any bugs to bug-gnuplot@dartmouth.edu.
39. Old_bugs
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