Longitude Variable Comparison

report produced with glance, version 0.2.7.05
comparison generated Mon May 12 19:35:36 2014 by user wstraka on presto.ssec.wisc.edu

file A:

path: /data/users/wstraka/glance_nav_test/orig/geocatNAV.Meteosat-8.2006236.160000.hdf
md5sum for file A: 1d2fc6e58c7f06aed343c12ea302de77
last modified: Fri May 9 21:12:41 2014

file B:

path: /data/users/wstraka/glance_nav_test/new/geocatNAV.Meteosat-8.2006236.160000.hdf
md5sum for file B: a79e27c4251d2bf612e87c297b6a0c18
last modified: Mon May 12 19:26:23 2014

A configuration file was used to control the production of this 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: 10280802 data points (74.61% 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.
View mismatching points in A's lon/lat system
View mismatching points in B's lon/lat system

Original Data

Comparison Information

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

Statistical Summary

Finite Data Statistics
a_finite_count*: 10280821
a_finite_fraction*: 0.7461
b_finite_count*: 10281017
b_finite_fraction*: 0.7461
common_finite_count*: 10280805
common_finite_fraction*: 0.7461
finite_in_only_one_count*: 0
finite_in_only_one_fraction*: 0.000

General Statistics
a_missing_value*: -999.0
b_missing_value*: -999.0
epsilon*: 2.000e-07
epsilon_percent*: None
max_a*: 81.20
max_b*: 81.22
min_a*: -81.20
min_b*: -81.22
num_data_points*: 13778944
shape*: (3712, 3712)
spatially_invalid_pts_ignored_in_a*: 3498123
spatially_invalid_pts_ignored_in_b*: 3497927

Missing Value Statistics
a_missing_count*: 0
a_missing_fraction*: 0.000
b_missing_count*: 0
b_missing_fraction*: 0.000
common_missing_count*: 0
common_missing_fraction*: 0.000

NaN Statistics
a_nan_count*: 0
a_nan_fraction*: 0.000
b_nan_count*: 0
b_nan_fraction*: 0.000
common_nan_count*: 0
common_nan_fraction*: 0.000

Numerical Comparison Statistics
correlation*: 1.000
diff_outside_epsilon_count*: 10236708
diff_outside_epsilon_fraction*: 0.9957
max_delta*: 0.9708
max_diff*: 0.9708
mean_delta*: -3.479e-13
mean_diff*: 0.0007692
median_delta*: 0.000
median_diff*: 0.0001450
min_delta*: -0.9708
mismatch_points_count*: 10236708
mismatch_points_fraction*: 0.7429
perfect_match_count*: 29595
perfect_match_fraction*: 0.002879
r-squared correlation*: 1.000
rms_val*: 0.004878
std_val*: 0.004878