pixel_longitude Variable Comparison

report produced with glance, version 0.2.6.10
comparison generated Fri Sep 4 13:20:04 2009 by user graemem on yurt.ssec.wisc.edu

file A:

path: /Users/graemem/cvs/geocat/dev_v0_8/nav_output/geocatNAV.Meteosat-8.2005176.120000.old_nav.hdf
md5sum for file A: 86f1f9406c8a135a6a9519a61b7ff562
last modified: Thu Sep 3 16:33:47 2009

file B:

path: /Users/graemem/cvs/geocat/dev_v0_8/nav_output/geocatNAV.Meteosat-8.2005176.120000.new_nav.hdf
md5sum for file B: 0c8f095568974b626102e39185e4331d
last modified: Fri Sep 4 12:03:55 2009

latitude: pixel_latitude
longitude: pixel_longitude

WARNING: 10275790 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_longitude
epsilon value: 0.0
"missing" data value in A: -999.0
"missing" data value in B: -999.0

Statistical Summary

Finite Data Statistics
a_finite_count*: 10280909
a_finite_fraction*: 0.7461
b_finite_count*: 10280909
b_finite_fraction*: 0.7461
common_finite_count*: 10275790
common_finite_fraction*: 0.7458
finite_in_only_one_count*: 0
finite_in_only_one_fraction*: 0

General Statistics
a_missing_value*: -999
b_missing_value*: -999
epsilon*: 0
max_a*: 81.19
max_b*: 81.19
min_a*: -81.19
min_b*: -81.19
num_data_points*: 13778944
shape*: (3712, 3712)
spatially_invalid_pts_ignored_in_a*: 3498035
spatially_invalid_pts_ignored_in_b*: 3498035
trouble_points_count*: 10275776
trouble_points_fraction*: 0.7458

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*: 10275776
diff_outside_epsilon_fraction*: 1
max_diff*: 5.914
mean_diff*: 0.05745
median_diff*: 0.03374
perfect_match_count*: 14
perfect_match_fraction*: 1.362e-06
rms_diff*: 0.11
std_diff*: 0.09487