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<a name="Module:Scientific.IO.ArrayIO"><h1>Module Scientific.IO.ArrayIO</h1></a>
<p>This module contains elementary support for I/O of one- and
two-dimensional numerical arrays to and from plain text files. The
text file format is very simple and used by many other programs as
well:</p>
<ul>
<li> <p>
each line corresponds to one row of the array</p><li> <p>
the numbers within a line are separated by white space</p><li> <p>
lines starting with # are ignored (comment lines)</p></ul>
<p>An array containing only one line or one column is returned as a
one-dimensional array on reading. One-dimensional arrays are written
as one item per line.</p>
<p>Numbers in files to be read must conform to Python/C syntax. For
reading files containing Fortran-style double-precision numbers
(exponent prefixed by D), use the module Scientific.IO.FortranFormat.
</p>
<hr width=70%>
<h2>Functions</h2>
<ul>
<li> <p>
<a name="Function:Scientific.IO.ArrayIO.readArray"><b><i>readArray</i></b>(<i>filename</i>)</a><br>
</p>
<p>Return an array containing the data from file <i>filename</i>.</p><li> <p>
<a name="Function:Scientific.IO.ArrayIO.writeArray"><b><i>writeArray</i></b>(<i>array</i>, <i>filename</i>)</a><br>
</p>
<p>Write array <i>a</i> to file <i>filename</i>.</p><li> <p>
<a name="Function:Scientific.IO.ArrayIO.writeDataSets"><b><i>writeDataSets</i></b>(<i>datasets</i>, <i>filename</i>, <i>separator</i>=<tt>''</tt>)</a><br>
</p>
<p>Write each of the items in the sequence <i>datasets</i>
to the file <i>filename</i>, separating the datasets by a line
containing <i>separator</i>. The items in the data sets can be
one- or two-dimensional arrays or equivalent nested sequences.
The output file format is understood by many plot programs.
</p></ul>
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