pixel_coast_mask Variable Comparison

report produced with glance, version 0.2.6.13
comparison generated Mon Oct 26 23:53:39 2009 by user wstraka on craackly.ssec.wisc.edu

file A:

path: ./original/geocatNAV.Meteosat-8.xxxxxxx.000001.hdf
md5sum for file A: 90d125c6bd643b8948591580ee98b257
last modified: Mon Oct 26 21:08:28 2009

file B:

path: ./truth/geocatNAV.Meteosat-8.xxxxxxx.000001.hdf
md5sum for file B: 7e7c7e1bfc91097b602940d67e238e8b
last modified: Mon Oct 26 22:02:16 2009

latitude: pixel_latitude
longitude: pixel_longitude

WARNING: 10275746 data points (74.58% 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_coast_mask
epsilon value: 2e-07
"missing" data value in A: -128
"missing" data value in B: -128

Statistical Summary

Finite Data Statistics
a_finite_count*: 10280909
a_finite_fraction*: 0.7461
b_finite_count*: 10280821
b_finite_fraction*: 0.7461
common_finite_count*: 10275746
common_finite_fraction*: 0.7458
finite_in_only_one_count*: 0
finite_in_only_one_fraction*: 0

General Statistics
a_missing_value*: -128
b_missing_value*: -128
epsilon*: 2e-07
max_a*: 10
max_b*: 10
min_a*: 0
min_b*: 0
num_data_points*: 13778944
shape*: (3712, 3712)
spatially_invalid_pts_ignored_in_a*: 3498035
spatially_invalid_pts_ignored_in_b*: 3498123

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*: 0.542
diff_outside_epsilon_count*: 455581
diff_outside_epsilon_fraction*: 0.04434
max_diff*: 10
mean_diff*: 0.2019
median_diff*: 0
perfect_match_count*: 9820165
perfect_match_fraction*: 0.9557
rms_diff*: 1
std_diff*: 1.118
trouble_points_count*: 455581
trouble_points_fraction*: 0.03306