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<li><a href="boxcount.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/boxcount.html">boxcount</a>: Estimate the Qth order
Renyi entropy using a partitioning of the data.</li>
<li><a href="xc2.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/xc2.html">xc2</a>: Compute the cross correlation sum of
two time series.</li>
</ul>
<hr>
<center><font size=4 color=blue><b>
<a name="tisean0.9">TISEAN_0.9 -&gt; TISEAN_1.0</a>
</b></font></center>
</b></font></center>
<hr>
<h4 align=center>Changes</h4>
<ul>
<li>Now each html file in the docs directory contains a description of
what the output of the programs is.</li>
<li>The <a href="false_nearest.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/false_nearest.html">false_nearest</a> routine didn't
implement the second condition of the <a
href="../chaospaper/citation.html#kennel92" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/chaospaper/citation.html#kennel92">Kennel et al</a> paper. Now it is
implemented (Thanks to Wolfgang M&uuml;ller and Angelo De Santis).</li>
<li>For each program which reads only one column you can now specify
the number of the column in the filename separated by a comma.<br>
Example: <i>hen,1</i> means use column <i>1</i> of file <i>hen</i><br>
Should work in a similar way as in the Wuppertal part.
</ul>
<hr>
<h4 align=center>Bug Fixes</h4>
<ul>
<li>The <a href="../../../../../tppmsgs/msgs0.htm#42" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/c/routines/search_datafile.c">search_datafile</a>
routines produced a <i>Segmentation fault</i> on some systems when no
valid filename was given. FIXED<br>
Additionally, if no valid filename is given at all, now stdin is read.</li>
</ul>
<hr>
<h4 align=center>New programs</h4>
<ul>
<li>NONE
</ul>
<hr>
<center><font size=4 color=blue><b>
<a name="tisean1.0">TISEAN_1.0 -&gt; TISEAN_1.2</a>
</b></font></center>
</b></font></center>
<hr>
<h4 align=center>Changes</h4>
<ul>
<li><a name="ar-model"></a>
   In <a href="ar-model.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/ar-model.html">ar-model</a> now the mean is first subtracted
   which should be less confusing.</li>
<li>A new routine <a
   href="../../../../../tppmsgs/msgs0.htm#43" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/c/routines/test_outfile.c">test_outfile</a> was added to
   <a href="routines.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/routines.html">tsa.h</a> which tests whether a file for
   writing the output into can be created or not.</li>
<li>Another new routine <a
   href="../../../../../tppmsgs/msgs0.htm#44" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/c/routines/invert_matrix.c">invert_matrix</a> was added
   to <a href="routines.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/routines.html">tsa.h</a>. It inverts a square matrix
   and is based on <a href="../../../../../tppmsgs/msgs0.htm#45" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/c/routines/solvele.c">solvele</a>.</li>
<li><a href="lyap_k.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/lyap_k.html">lyap_k</a> wanted to have the epsilon values
   in units of the data, the output was in rescaled
   units, though. Since this was a bit confusing, it was changed. Now output
   is also in units of the data.</li>
<li>All programs were modified such that they use the routine 
   <a href="../../../../../tppmsgs/msgs0.htm#43" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/c/routines/test_outfile.c">test_outfile</a>.</li>
<li><a name="rbf"></a>
   <a href="rbf.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/rbf.html">rbf</a>: The distribution of the centers and
   the variance of the gaussians was changed to make the program more
   effective. Now less centers should be necessary. Furthermore, the
   program should be much faster now and thus the default is now:
   write to stdout.</li>
<li><a name="histogram"></a>
   <a href="histogram.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/histogram.html">histogram</a>: The output was changed in
   a way that now the integral over the second column should be 1.</li>
</ul>
<hr>
<h4 align=center>Bug Fixes</h4>
<ul>
<li><a name="lyap_spec"></a>
<a href="lyap_spec.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/lyap_spec.html">lyap_spec</a> was expecting a value for
the flag -I though there was no need for it. FIXED (Results were not
influenced)</li>
<li><a name="extrema"></a>
<a href="extrema.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/extrema.html">extrema</a>: The first value was
nonsens. FIXED. (All other values were not influenced)</li>
<li><a name="false_nearest"></a>
<a href="false_nearest.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/false_nearest.html">false_nearest</a>: The condition for
the maximal allowed distance between the pairs of points was
implemented wrongly. FIXED. (It did influence your results, but buggy
though, it was still a stronger condition than the original one of
Kennel et al.)</li>
</ul>
<hr>
<h4 align=center>New programs</h4>
<ul>
<li><a name="fsle"></a>
A program for estimating the finite size Lyapunov exponents <a
href="fsle.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/fsle.html">fsle</a> was added. (BETA. I'm not completely sure
whether this program does what it is supposed to do. So please be
careful in using it.)</li>
<li><a name="resample"></a>
<a href="resample.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/resample.html">resample</a>: A program for resampling a  
time series (of a flow system, of course) with a new sampling time.</li>
</ul>
<hr>
<a href="#top">top</a> of the page.
<hr>
<center><font size=4 color=blue><b>
<a name="tisean1.2">TISEAN_1.2 -&gt; TISEAN_2.0</a>
</b></font></center>
</b></font></center>
<hr>
<h4 align=center>Changes</h4>
<ul>
<li>
A new routine <a href="../../source_c/routines/exclude_interval.c" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/source_c/routines/exclude_interval.c">
exclude_interval</a> was added to <a
href="routines.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/routines.html">tsa.h</a>. It allows to exclude an interval of
indexes from a list of neighbors found.</li>
<li><a name="lyap_k"></a>
When the parameter of <font color=red>-m</font> is larger than
that of <font color=red>-M</font> in <a href="lyap_k.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/lyap_k.html">lyap_k</a>,
now the <font color=red>-m</font> value is used. (Thanks to Jens
Timmer)</li>
<li>Furthermore, <a href="lyap_k.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/lyap_k.html">lyap_k</a> was rewritten in C.</li>
<li>The programs <font color=blue>delay, make_ps</font> were
removed from the supported part of the package. In case you are
a fan of these programs, you'll find the sources and the html-files in
the directory <font color=blue>unsupported</font>. As the
name says, there will be no support, what so ever, for these
programs. Maybe <font color=blue>make_ps</font> will come back in a
later version when it is useful for more people, not only for me.
</li>
<li>The program <a href="histogram.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/histogram.html">histogram</a> was rewritten
in C. This means the package is now C++ free.</li>
<li>The program <a href="nrlazy.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/nrlazy.html">nrlazy</a> has an additional
option <font color=red>-v</font> which allows to set the neighborhood
size in units of the standard deviation of the data.</li>
<li>The program <a href="d2.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/d2.html">d2</a> is now able to handle multivariate
data, also with mixed embeddings. Further, the default for the <font
color=red>-N</font> is now 1000 instead of all. To get all back, set the
value to 0. Furthermore, columns 1 and 3 in the output files are
interchanged. The first column now contains the length scales in units
of the data.</li>
<li>The program <a href="av-d2.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/av-d2.html">av-d2</a> was changed in a way
that it is now able to handle the output of the files of the program. 
Since the natural units
for length scales are the default units now, the option <font
color=red>-r</font> was replaced by <font color=red>-e</font>.</li>
<li>Some of the messages of the programs were changed to avoid that
they look like error messages. (Thanks to Christian
R&ouml;denbeck)</li>
<li>Two new routines to handle multivariate time series were added to
<a href="routines.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/routines.html">tsa.h</a>: <a
href="../../source_c/routines/make_multi_box.c" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/source_c/routines/make_multi_box.c">make_multi_box</a> and
<a href="../../source_c/routines/find_multi_neighbors.c" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/source_c/routines/find_multi_neighbors.c">
find_multi_neighbors</a>.</li>
<li>To reduce the number of <i>segmentation faults</i> another
routine <a
href="../../source_c/routines/check_alloc.c" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/source_c/routines/check_alloc.c">check_alloc</a> was added
to <a href="routines.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/routines.html">tsa.h</a>.</li>
<li>A new flag <font color=red>-S</font> was added for the <a
href="zeroth.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/zeroth.html">zeroth</a> program.</li>
<li>The <font color=red>-F</font> was replaced by <font
color=red>-c</font></li>.
<li>To make the <font color=red>-c</font> and <font
color=red>-m</font> flags more flexible to use I changed the routine
<a
href="../../source_c/routines/get_multi_series.c" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/source_c/routines/get_multi_series.c">get_multi_series</a>
in <a href="routines.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/routines.html">tsa.h</a>.</li>
<li>Now <a href="mutual.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/mutual.html">mutual</a> uses the standard norm for
its output.</li>
<li>A new routine <a
href="../../source_c/routines/what_i_do.c" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/source_c/routines/what_i_do.c">what_i_do</a> was added to
<a href="routines.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/routines.html">tsa.h</a>. It
displays kind of a welcome message when the program is started.</li>
<li>A new routine <a
href="../../source_c/routines/myfgets.c" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/source_c/routines/myfgets.c">myfgets</a> was added to <a
href="routines.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/routines.html">tsa.h</a>. It handles loooong input lines.</li>
<li>A new flag <font color=red>-V</font> was added for all
programs. It allows to add an <a href="../general.html#verbosity" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/general.html#verbosity">verbosity level</a> like in Thomas'
programs. See the corresponding help pages for more info. According to
this change, I had to modify the routine <font
color=blue>get_series</font> and <font color=blue>get_series</font> in
<a href="routines.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/routines.html">tsa.h</a>.</li>
<li><a href="lyap_spec.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/lyap_spec.html">lyap_spec</a> is now able to handle
delays other than 1.</li>
</ul>
<hr>
<h4 align=center>Bug Fixes</h4>
<ul>
<li><a name="ll-ar"></a>
When using the routines <a href="ll-ar.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/ll-ar.html">ll-ar</a>, <a
href="onestep.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/onestep.html">onestep</a> and <a href="zeroth.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/zeroth.html">zeroth</a>
with the <font color=red>-s</font> flag set to a value larger than 1
the points mapped into the interval [actual point,actual point + value
of -s] were not excluded from the neighborhood. This caused causality
problems especially for oversampled flow data, which could result in
a severe underestimation of the forecast errors. FIXED (Thanks to Mario
Ragwitz and Holger)</li>
<li>The <font color=red>-r</font> flag in <a
href="xzero.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/xzero.html">xzero</a> was buggy. When used, the result was
usually (depending on the architecture) a <font color=blue>floating
execption</font>. (Thanks to Mario Ragwitz)</li>
</ul>
<hr>
<h4 align=center>New programs</h4>
<ul>
<li><a name="mzeroth"></a>
<a href="mzeroth.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/mzeroth.html">mzeroth</a>: Estimates the forecast errors for
a multicomponent time series using a zeroth order model.</li>
<li><a name="nstat_z"></a>
<a href="nstat_z.html" tppabs="http://www.mpipks-dresden.mpg.de/~tisean/TISEAN_2.0/docs/dresden/nstat_z.html">nstat_z</a>: Takes a scalar time series,
divides it into pieces and estimates the zeroth order cross-forecast
errors as a test for nonstationarity.</li>
</ul>
<hr>
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