X2SYS_REPORT(1) Generic Mapping Tools X2SYS_REPORT(1)NAMEx2sys_report - Report statistics from crossover data base
SYNOPSISx2sys_report-Ccolumn-TTAG [ coedbase.txt ] [ -A ] [ -I[list] ] [
-L[corrtable] ] [ -Nnx_min ] [ -Qe|i ] [ -Rwest/east/south/north[r] ] [
-Strack ] [ -V ]
DESCRIPTIONx2sys_report will read the input crossover ASCII data base coedbase.txt
(or stdin) and report on the statistics of crossovers (n, mean, stdev,
rms, weight) for each track. Options are available to let you exclude
tracks and limit the output.
-C Specify which data column you want to process. Crossovers
related to this column name must be present in the crossover
data base.
-T Specify the x2sys TAG which tracks the attributes of this data
type.
OPTIONS
No space between the option flag and the associated arguments.
coedbase.txt
The name of the input ASCII crossover error data base as pro‐
duced by x2sys_cross. If not given we read standard input
instead.
-A 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 column).
Such adjustments may be used by x2sys_datalist. The adjustment
files are called track.column.adj and are placed in the
$X2SYS_HOME/TAG directory. For background information on how
these adjustments are designed, see Mittal [1984].
-I Name of ASCII file with a list of track names (one per record)
that should be excluded from consideration [Default includes all
tracks].
-L Apply optimal corrections to the chosen observable. Append the
correction table to use [Default uses the correction table
TAG_corrections.txt which is expected to reside in the
$X2SYS_HOME/TAG directory]. For the format of this file, see
x2sys_solve.
-N Only report data from tracks involved in at least nx_min
crossovers [all tracks].
-Q Append e for external crossovers or i for internal crossovers
only [Default is external].
-R west, east, south, and north 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 r if lower left and
upper right map coordinates are given instead of w/e/s/n. The
two shorthands -Rg and -Rd 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
-R settings (and grid spacing, if applicable) are copied from
the grid. For Cartesian data just give xmin/xmax/ymin/ymax.
This option bases the statistics on those COE that fall inside
the specified domain.
-S Name of a single track. If given we restrict output to those
crossovers involving this track [Default output is crossovers
involving any track pair].
-V Selects verbose mode, which will send progress reports to stderr
[Default runs "silently"].
EXAMPLES
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
x2sys_report COE_data.txt -V -T MGD77 -R 180/240/-60/-30 -C mag >
mag_report.txt
To report on the faa crossovers globally that involves track 12345678,
try
x2sys_report COE_data.txt -V-T MGD77 -C faa -S 12345678 >
faa_report.txt
REFERENCES
Mittal, P. K. (1984), Algorithm for error adjustment of potential field
data along a survey network, Geophysics, 49(4), 467-469.
SEE ALSOx2sys_binlist(1)x2sys_cross(1)x2sys_datalist(1)x2sys_get(1)x2sys_init(1)x2sys_list(1)x2sys_put(1)x2sys_solve(1)GMT 4.5.14 1 Nov 2015 X2SYS_REPORT(1)
