1X2SYS_REPORT(1) Generic Mapping Tools X2SYS_REPORT(1)
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6 x2sys_report - Report statistics from crossover data base
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9 x2sys_report -Ccolumn -TTAG [ coedbase.txt ] [ -A ] [ -I[list] ] [
10 -L[corrtable] ] [ -Nnx_min ] [ -Qe|i ] [ -Rwest/east/south/north[r] ] [
11 -Strack ] [ -V ]
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14 x2sys_report will read the input crossover ASCII data base coedbase.txt
15 (or stdin) and report on the statistics of crossovers (n, mean, stdev,
16 rms, weight) for each track. Options are available to let you exclude
17 tracks and limit the output.
18 -C Specify which data column you want to process. Crossovers
20 related to this column name must be present in the crossover
21 data base.
22 -T Specify the x2sys TAG which tracks the attributes of this data
24 type.
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27 No space between the option flag and the associated arguments.
28 coedbase.txt
30 The name of the input ASCII crossover error data base as pro‐
31 duced by x2sys_cross. If not given we read standard input
32 instead.
33 -A Eliminate COEs by distributing the COE between the two tracks in
35 proportion to track weight and producing (dist, adjustment)
36 spline knots files for each track (for the selected column).
37 Such adjustments may be used by x2sys_datalist. The adjustment
38 files are called track.column.adj and are placed in the
39 $X2SYS_HOME/TAG directory. For background information on how
40 these adjustments are designed, see Mittal [1984].
41 -I Name of ASCII file with a list of track names (one per record)
43 that should be excluded from consideration [Default includes all
44 tracks].
45 -L Apply optimal corrections to the chosen observable. Append the
47 correction table to use [Default uses the correction table
48 TAG_corrections.txt which is expected to reside in the
49 $X2SYS_HOME/TAG directory]. For the format of this file, see
50 x2sys_solve.
51 -N Only report data from tracks involved in at least nx_min
53 crossovers [all tracks].
54 -Q Append e for external crossovers or i for internal crossovers
56 only [Default is external].
57 -R west, east, south, and north specify the Region of interest, and
59 you may specify them in decimal degrees or in
60 [+-]dd:mm[:ss.xxx][W|E|S|N] format. Append r if lower left and
61 upper right map coordinates are given instead of w/e/s/n. The
62 two shorthands -Rg and -Rd stand for global domain (0/360 and
63 -180/+180 in longitude respectively, with -90/+90 in latitude).
64 Alternatively, specify the name of an existing grid file and the
65 -R settings (and grid spacing, if applicable) are copied from
66 the grid. For Cartesian data just give xmin/xmax/ymin/ymax.
67 This option bases the statistics on those COE that fall inside
68 the specified domain.
69 -S Name of a single track. If given we restrict output to those
71 crossovers involving this track [Default output is crossovers
72 involving any track pair].
73 -V Selects verbose mode, which will send progress reports to stderr
75 [Default runs "silently"].
76
78 To report statistics of all the external magnetic crossovers associated
79 with the tag MGD77 from the file COE_data.txt, restricted to occupy a
80 certain region in the south Pacific, try
81 x2sys_report COE_data.txt -V -TMGD77 -R180/240/-60/-30 -Cmag >
83 mag_report.txt
84 To report on the faa crossovers globally that involves track 12345678,
86 try
87 x2sys_report COE_data.txt -V -TMGD77 -Cfaa -S12345678 > faa_report.txt
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91 Mittal, P. K. (1984), Algorithm for error adjustment of potential field
92 data along a survey network, Geophysics, 49(4), 467-469.
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95 x2sys_binlist(1) x2sys_cross(1) x2sys_datalist(1) x2sys_get(1)
96 x2sys_init(1) x2sys_list(1) x2sys_put(1) x2sys_solve(1)
97GMT 4.5.6 10 Mar 2011 X2SYS_REPORT(1)