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<title>X2SYS_REPORT</title>
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<h1 align="center">X2SYS_REPORT</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#OPTIONS">OPTIONS</a><br>
<a href="#EXAMPLES">EXAMPLES</a><br>
<a href="#REFERENCES">REFERENCES</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<h2>NAME
<a name="NAME"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">x2sys_report
− Report statistics from crossover data base</p>
<h2>SYNOPSIS
<a name="SYNOPSIS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>x2sys_report
−C</b><i>column</i> <b>−T</b><i>TAG</i> [
<i>coedbase.txt</i> ] [ <b>−A</b> ] [
<b>−I</b>[<i>list</i>] ] [
<b>−L</b>[<i>corrtable</i>] ] [
<b>−N</b><i>nx_min</i> ] [ <b>−Qe</b>|<b>i</b> ]
[
<b>−R</b><i>west</i>/<i>east</i>/<i>south</i>/<i>north</i>[<b>r</b>]
] [ <b>−S</b><i>track</i> ] [ <b>−V</b> ]</p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>x2sys_report</b>
will read the input crossover ASCII data base
<i>coedbase.txt</i> (or <i>stdin</i>) and report on the
statistics of crossovers (<i>n, mean, stdev, rms,
weight</i>) for each track. Options are available to let you
exclude tracks and limit the output.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−C</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Specify which data column you want to process.
Crossovers related to this column name must be present in
the crossover data base.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−T</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Specify the x2sys <i>TAG</i> which tracks the attributes
of this data type.</p></td></tr>
</table>
<h2>OPTIONS
<a name="OPTIONS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">No space
between the option flag and the associated arguments.
<i><br>
coedbase.txt</i></p>
<p style="margin-left:22%;">The name of the input ASCII
crossover error data base as produced by <b><A HREF="x2sys_cross.html">x2sys_cross</A></b>.
If not given we read standard input instead.</p>
<table width="100%" border="0" rules="none" frame="void"
cellspacing="0" cellpadding="0">
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−A</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Eliminate COEs by distributing the COE between the two
tracks in proportion to track weight and producing (dist,
adjustment) spline knots files for each track (for the
selected <i>column</i>). Such adjustments may be used by
<b><A HREF="x2sys_datalist.html">x2sys_datalist</A></b>. The adjustment files are called
<i>track.column</i>.adj and are placed in the
<b>$X2SYS_HOME</b>/<i>TAG</i> directory. For background
information on how these adjustments are designed, see
<i>Mittal</i> [1984].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−I</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Name of ASCII file with a list of track names (one per
record) that should be excluded from consideration [Default
includes all tracks].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−L</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Apply optimal corrections to the chosen observable.
Append the correction table to use [Default uses the
correction table <i>TAG</i>_corrections.txt which is
expected to reside in the <b>$X2SYS_HOME</b>/<i>TAG</i>
directory]. For the format of this file, see
<b><A HREF="x2sys_solve.html">x2sys_solve</A></b>.</p> </td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−N</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Only report data from tracks involved in at least
<i>nx_min</i> crossovers [all tracks].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−Q</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Append <b>e</b> for external crossovers or <b>i</b> for
internal crossovers only [Default is external].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−R</b></p></td>
<td width="8%"></td>
<td width="78%">
<p><i>west, east, south,</i> and <i>north</i> specify the
Region of interest, and you may specify them in decimal
degrees or in [+-]dd:mm[:ss.xxx][W|E|S|N] format. Append
<b>r</b> if lower left and upper right map coordinates are
given instead of w/e/s/n. The two shorthands
<b>−Rg</b> and <b>−Rd</b> stand for global
domain (0/360 and -180/+180 in longitude respectively, with
-90/+90 in latitude). Alternatively, specify the name of an
existing grid file and the <b>−R</b> settings (and
grid spacing, if applicable) are copied from the grid. For
Cartesian data just give <i>xmin/xmax/ymin/ymax</i>. This
option bases the statistics on those COE that fall inside
the specified domain.</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−S</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Name of a single track. If given we restrict output to
those crossovers involving this track [Default output is
crossovers involving any track pair].</p></td></tr>
<tr valign="top" align="left">
<td width="11%"></td>
<td width="3%">
<p><b>−V</b></p></td>
<td width="8%"></td>
<td width="78%">
<p>Selects verbose mode, which will send progress reports
to stderr [Default runs "silently"].</p></td></tr>
</table>
<h2>EXAMPLES
<a name="EXAMPLES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">To report
statistics of all the external magnetic crossovers
associated with the tag MGD77 from the file COE_data.txt,
restricted to occupy a certain region in the south Pacific,
try</p>
<p style="margin-left:11%; margin-top: 1em"><b>x2sys_report</b>
COE_data.txt <b>−V −T</b> MGD77 <b>−R</b>
180/240/-60/-30 <b>−C</b> mag > mag_report.txt</p>
<p style="margin-left:11%; margin-top: 1em">To report on
the faa crossovers globally that involves track 12345678,
try</p>
<p style="margin-left:11%; margin-top: 1em"><b>x2sys_report</b>
COE_data.txt <b>−V −T</b> MGD77 <b>−C</b>
faa <b>−S</b> 12345678 > faa_report.txt</p>
<h2>REFERENCES
<a name="REFERENCES"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">Mittal, P. K.
(1984), Algorithm for error adjustment of potential field
data along a survey network, <i>Geophysics, 49</i>(4),
467-469.</p>
<h2>SEE ALSO
<a name="SEE ALSO"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><i><A HREF="x2sys_binlist.html">x2sys_binlist</A></i>(1)
<i><A HREF="x2sys_cross.html">x2sys_cross</A></i>(1) <i><A HREF="x2sys_datalist.html">x2sys_datalist</A></i>(1)
<i><A HREF="x2sys_get.html">x2sys_get</A></i>(1) <i><A HREF="x2sys_init.html">x2sys_init</A></i>(1)
<i><A HREF="x2sys_list.html">x2sys_list</A></i>(1) <i><A HREF="x2sys_put.html">x2sys_put</A></i>(1)
<i><A HREF="x2sys_solve.html">x2sys_solve</A></i>(1)</p>
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