Optical Depth Visibility, Night Variable Comparison

report produced with glance, version 0.2.6.18
comparison generated Wed Sep 22 23:41:10 2010 by user evas on craackly.ssec.wisc.edu

file A:

path: /home/evas/GRAFIIRtemp/GlanceTesting/rrWithDiffPlatforms/diff-machines-truth/geocatL2.Meteosat-8.2005176.000000.hdf
md5sum for file A: f834c36fe8bbadc7f29337bceda31089
last modified: Fri Sep 17 14:08:34 2010

file B:

path: /home/evas/GRAFIIRtemp/GlanceTesting/rrWithDiffPlatforms/diff-machines-test/geocatL2.Meteosat-8.2005176.000000.hdf
md5sum for file B: fa9844fc02478fee710ca1e54c39c242
last modified: Fri Sep 17 13:50:38 2010

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

Original Data

Comparison Information

variable name: night_optprop_cloud_optical_depth_vis
epsilon value: None
epsilon percent: 0.15%
"missing" data value in A: -999.0
"missing" data value in B: -999.0

Statistical Summary

Finite Data Statistics

a_finite_count*: 4943961
a_finite_fraction*: 0.3588
b_finite_count*: 4943838
b_finite_fraction*: 0.3588
common_finite_count*: 4943257
common_finite_fraction*: 0.3588
finite_in_only_one_count*: 1285
finite_in_only_one_fraction*: 9.326e-05

General Statistics

a_missing_value*: -999
b_missing_value*: -999
epsilon*: None
epsilon_percent*: 0.15
max_a*: 16
max_b*: 16
min_a*: 2.068e-06
min_b*: 5.686e-06
num_data_points*: 13778944
shape*: (3712, 3712)
spatially_invalid_pts_ignored_in_a*: 0
spatially_invalid_pts_ignored_in_b*: 0

Missing Value Statistics

a_missing_count*: 8834983
a_missing_fraction*: 0.6412
b_missing_count*: 8835106
b_missing_fraction*: 0.6412
common_missing_count*: 8834402
common_missing_fraction*: 0.6412

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*: 0.9993
diff_outside_epsilon_count*: 45531
diff_outside_epsilon_fraction*: 0.009211
max_diff*: 15.99
mean_diff*: 0.003113
median_diff*: 7.153e-07
perfect_match_count*: 2069830
perfect_match_fraction*: 0.4187
r-squared correlation*: 0.9986
rms_diff*: 0.1624
std_diff*: 0.1624
trouble_points_count*: 46816
trouble_points_fraction*: 0.003398