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<head><title>TISEAN: List of changes (Wuppertal)</title></head>
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<h3>Nonlinear Time Series Routines<br> (Wuppertal branch)</h3>
<h3>List of changes</h3>
</center>
<a name="tisean0.1"></a>
<h4>TISEAN_0.1 -> TISEAN_0.2</h4>
<ul>
<li><a href="pc.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/pc.html">pc</a> prints out the
fractions of the variance covered by the principal directions.
<li>Recovered correct versions of
<a href="lazy.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/lazy.html">lazy</a> and
<a href="project.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/project.html">project</a>:
the difference in the second columns are now formed corerctly,
with respect to the raw data, not to the last iterate.
</ul>
<a name="tisean0.2"></a>
<h4>TISEAN_0.2 -> TISEAN_0.3</h4>
<ul>
<li><a href="timerev.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/timerev.html">timerev</a> and
<a href="../../../../../tppmsgs/msgs0.htm#41" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/autocor3.html">autocor3</a>:
bug that prevented from reading input removed.
<li>Made parsing of commandline arguments more stable (hopefully): larger
numbers (up to 20 digits) are handled.
</ul>
<a name="tisean0.3"></a>
<h4>TISEAN_0.3 -> TISEAN_0.4</h4>
<ul>
<li>Almost all (FORTRAN) programs now accept an option
<font color=blue><tt> -V# </tt></font> that specifies the level of
diagnostic output. The default is as a rule what was there in
TISEAN_0.3. Specifying <font color=blue><tt> -V0 </tt></font> now switches
off all but fatal error messages. No more reporting of file opening etc.
<li>Introduced utilities for usage message, removing repetitions of the same
code sequences through all sources.
<li>Unstable periodic orbits and their
stabilities (<a href="upo.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/upo.html">upo</a>). Stabilities are still somewhat
experimental.
<li>Embedding of periodic orbits (<a href="upoembed.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/upoembed.html">upoembed</a>).
<li>General constrained
randomization (<a href="randomize.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/randomize.html">randomize</a>). Contains modules
for constraints involving linear correlations, others are planned. Own
programming efforts to specify exotic constraints are encouraged.
</ul>
<a name="tisean0.4"></a>
<h4>TISEAN_0.4 -> TISEAN_0.5</h4>
<ul>
<li>Recovered correct version of
<a href="../../../../../tppmsgs/msgs0.htm#38" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c2.html">c2</a> which was
(slightly) broken in release 0.4.
<li>The realisation of <a href="randomize.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/randomize.html">randomize</a> that
implements the
autocorrelation function suffered from a last-minute change that didn't
quite work out and was unusable. Now fixed.
<li>All programs interpret anything which is not a valid option or its value as
a file name. This allows to give file names at arbitrary places on the
command line, a tiny step towards re-unification of the Dresden and
Wuppertal branches.
<li>All programs, when called without a file name, act as if a "-" was given,
and read from stdin if that is appropriate. As a side effect, a few
programs have to be called with <font color=blue><tt>-h</tt></font> in
order to see the command line options, since a call with no arguments would
be a valid execution.
</ul>
<a name="tisean0.5"></a>
<h4>TISEAN_0.5 -> TISEAN_0.9</h4>
<ul>
<li>Changed the output file behaviour in accordance with what the Dresden
programs do: By default, most programs write to stdout now, independent of
the input source. The option <font color=blue><tt>-o</tt></font> tells the
program to build file names from the input file name, or "stdin" if
appropriate. Finally, <font color=blue><tt>-o </tt> <em>outfile</em></font>
specifies an <a href="../general.html#outfile" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/general.html#outfile">output file name</a> explicitly. Somewhat awkwardly, this will be
the same for all input files processed and results are <font
color=red>overwritten</font> if you don't move the files fast enough.
This behaviour may be changed in later releases once I have a good idea
what else to do.
<li>Quite a number of options have changed in the course of the re-unification
process. Most propminently,
<font color=blue><tt>-r</tt></font>/<font color=blue><tt>-R</tt></font>
replaces
<font color=blue><tt>-e</tt></font>/<font color=blue><tt>-E</tt></font>
for absolute lengths scales.
<li>Gradually, more and more programs respond meaningfully to the <font
color=blue><tt>-V</tt></font> (verbosity) option.
</ul>
<a name="tisean0.9"></a>
<h4>TISEAN_0.9 -> TISEAN_1.0</h4>
<ul>
<li>A few of the FORTRAN programs confused one compiler due to the order
of declarations, which has now been changed to be conservative.
<li>Depending on the number of data points, the necessary zero padding in
<a href="wiener.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/wiener.html">wiener1</a>
was awkward, if not outright wrong. This has been fixed now.
</ul>
<a name="tisean1.0"></a>
<h4>TISEAN_1.0 -> TISEAN_1.2</h4>
<ul>
<li><a name="c2t"></a><a name="c2g"></a>
An oddity with the command line parsing of
<a href="c2t.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c2t.html">c2t</a> and
<a href="c2g.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c2g.html">c2g</a> has been fixed.
<li><a name="ar-run"></a>
A back end to <a href="../dresden/ar-model.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/ar-model.html">ar-model</a>
has been added that runs an
autoregressive model. It is called <a href="ar-run.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/ar-run.html">ar-run</a>.
</ul>
<a name="tisean1.2"></a>
<h4>TISEAN_1.2 -> TISEAN_2.0</h4>
<ul>
<li><a name="events"><a name="intervals">
Utilities for the conversion of inter-event intervals to event times and
vice versa have been added. They are called <a href="events.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/events.html">events</a>
and <a href="intervals.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/intervals.html">intervals</a>.
<li><a name="noise"></a>
<font color=blue>noise</font> is no longer supported. If you are
desperate, you can find it still in the <font
color=blue><tt>unsupported</tt></font> directory.
<li><a name="autocor3"></a>
<font color=blue>autocor3</font> is no longer supported. If you are
desperate, you can find it still in the <font
color=blue><tt>unsupported</tt></font> directory. I never used it myself and
it was in C. It had to go.
<li><a name="lyapunov"></a>
<font color=blue>lyapunov</font> is no longer supported due to its
redundancy with <a href="../dresden/lyap_k.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/lyap_k.html">lyap_k</a>. If you are
desperate, you can find it still in the <font
color=blue><tt>unsupported</tt></font> directory.
<li><a name="surrogates"></a>
<a href="surrogates.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/surrogates.html"</a>surrogates</a> has been rewritten in FORTRAN
with a slight change in its functionality.
<li><a name="timrev"></a>
<a href="timerev.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/timerev.html"</a>timerev</a> has been rewritten in FORTRAN,
same functionality.
<li><a name="addnoise"></a>
<a href="addnoise.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/addnoise.html"</a>addnoise</a>
can now run without input files, just as a random number generator.
<li><a name="randomize"></a>
There are three new members in the <a href="randomize.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/randomize.html"</a>randomize</a>
family, one for unevenly sampled data and two suitable for inter-spike
interval series.
<li>An interference between option names has been removed. In the <a
href="randomize.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/randomize.html">randomize</a> family, <font
color=blue><tt>-w</tt></font> has been changed to <font
color=blue><tt>-u</tt></font>.
<li><a name="c1"><a name="c2naive">
<a name="c2d"><a name="c2g"><a name="c2t">
The output of the correlation sum programs has been partially
restructured. Seperate files for different embedding dimensions are no
longer written, everything come in a single file, seperated by double blank
lines. Thus, <a href="c1.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c1.html"</a>c1</a>, <a href="../../../../../tppmsgs/msgs0.htm#38" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c2.html"</a>c2</a>, and
<a href="c2naive.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c2naive.html"</a>c2naive</a> are now compatible with
<a href="../dresden/d2.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/d2.html"</a>d2</a>. These changes also affect
<a href="c2d.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c2d.html"</a>c2d</a>,
<a href="c2g.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c2g.html"</a>c2g</a>, and <a href="c2t.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c2t.html"</a>c2t</a>,
which thereby also become usable for <a href="../dresden/d2.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/d2.html"</a>d2</a>.
Writing to stdout is now the default and stdin is acceptable as input file.
<li><a name="stp">The output of <a href="stp.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/stp.html"</a>stp</a> can now be better
controlled, specifying the spacing of level lines and the number of time
steps.
<li><a name="xc2"><a name="compare">
The output of the correlation sum programs has been partially
restructured. This applies to <a href="../dresden/xc2.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/xc2.html"</a>xc2</a> as
well. Also, rather than reading from two files, now two columns from the
same file are read. The latter also applies to
<a href="compare.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/compare.html"</a>compare</a>.
<li>The program <font color=blue><tt>randomize_generic_exp_random</tt></font>
was quite useless and has therefore been removed.
<li><a name="c1">As a personal service to Remo Badii, a "feature" of <a
href="c1.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/c1.html"</a>c1</a> was removed that caused small values
of k to be computed more than once, a result of having k discrete but in a
logarithmic loop.
<li><a name="randomize">The module structure is changed slightly to enable the
future incorporation of multivariate data. Please check the new <a
href="randomize_extend.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/randomize_extend.html">extension guide</a>.
<li>A new program is available to <a href="cluster.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/wuppertal/cluster.html">cluster</a> a
dissimilarity matrix.
</ul>
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