Longitude Variable Comparison

report produced with glance, version 0.2.6.24
comparison generated Wed Nov 3 21:18:43 2010 by user wstraka on craackly.ssec.wisc.edu

file A:

path: /data/wstraka/MTSAT_nav/new.geocatNAV.MTSAT-1R.2009202.033000.hdf
md5sum for file A: dab772c275719b4a44aedbf9820a5ab9
last modified: Wed Nov 3 20:37:45 2010

file B:

path: /data/wstraka/MTSAT_nav/nav_geocat2.hdf
md5sum for file B: 21a2ee360897c66f77dcb08249f6a3fc
last modified: Wed Apr 14 23:18:47 2010

A configuration file was used to control the production report.
Please see this copy of the configuration file for details.

Note: The data for this variable from file A was filtered.
Note: The data for this variable from file B was filtered.
Note: The longitude in file A was filtered.
Note: The longitude in file B was filtered.
Please see the original configuration file to view any data filtering functions.

latitude in A: pixel_latitude
latitude in B: pixel_latitude
longitude in A: pixel_longitude
longitude in B: pixel_longitude
longitude/latitude comparison epsilon: 2e-07

WARNING: 3704246 data points (48.95% of all data) show possible mismatch in values stored in file a and file b longitude and latitude values. Depending on the degree of mismatch, some data value comparisons in this report may be distorted or spatially nonsensical. Please consider re-running this report and including an examination of your longitude and latitude variables with appropriate epsilons in order to analyze the significance of the difference.

Comparison Information

variable name: pixel_longitude
epsilon value: 2e-07
"missing" data value: -999.0
units in A: degrees_east

Statistical Summary

Finite Data Statistics
a_finite_count*: 5784465
a_finite_fraction*: 0.7643
b_finite_count*: 5784465
b_finite_fraction*: 0.7643
common_finite_count*: 5784465
common_finite_fraction*: 0.7643
finite_in_only_one_count*: 0
finite_in_only_one_fraction*: 0

General Statistics
a_missing_value*: -999
b_missing_value*: -999
epsilon*: 2e-07
epsilon_percent*: None
max_a*: 180
max_b*: 180
min_a*: -180
min_b*: -180
num_data_points*: 7568000
shape*: (2750, 2752)
spatially_invalid_pts_ignored_in_a*: 1783535
spatially_invalid_pts_ignored_in_b*: 1783535

Missing Value Statistics
a_missing_count*: 0
a_missing_fraction*: 0
b_missing_count*: 0
b_missing_fraction*: 0
common_missing_count*: 0
common_missing_fraction*: 0

NaN Statistics
a_nan_count*: 0
a_nan_fraction*: 0
b_nan_count*: 0
b_nan_fraction*: 0
common_nan_count*: 0
common_nan_fraction*: 0

Numerical Comparison Statistics
correlation*: 1
diff_outside_epsilon_count*: 0
diff_outside_epsilon_fraction*: 0
max_diff*: 0
mean_diff*: 0
median_diff*: 0
perfect_match_count*: 5784465
perfect_match_fraction*: 1
r-squared correlation*: 1
rms_diff*: 0
std_diff*: 0
trouble_points_count*: 0
trouble_points_fraction*: 0