Longitude Variable Comparison

report produced with glance, version 0.2.6.24
comparison generated Tue Dec 28 19:46:12 2010 by user wstraka on craackly.ssec.wisc.edu

file A:

path: /data/wstraka/OTTC_v4/truth_data/geocatL2.GOES-R.2006097.184500.hdf
md5sum for file A: 2c638b2f8353ef0cd8c1f6d775fceb25
last modified: Wed Nov 17 23:08:00 2010

file B:

path: /home/wstraka/geocat_fwiw_ottc/l2_output/geocatL2.GOES-R.2006097.184500.hdf
md5sum for file B: 3bf210d75992cff6ca9fa1f89a54c95a
last modified: Tue Dec 28 19:31:31 2010

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

latitude in A: pixel_latitude
latitude in B: pixel_latitude
longitude in A: pixel_longitude
longitude in B: pixel_longitude

WARNING: 22 data points (0.00055% 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: -32768
"missing" data value in B: -32768
units in A: degrees_east
units in B: degrees_east

Statistical Summary

Finite Data Statistics
a_finite_count*: 3438480
a_finite_fraction*: 0.8596
b_finite_count*: 3438480
b_finite_fraction*: 0.8596
common_finite_count*: 3438480
common_finite_fraction*: 0.8596
finite_in_only_one_count*: 0
finite_in_only_one_fraction*: 0

General Statistics
a_missing_value*: -32768
b_missing_value*: -32768
epsilon*: 0
epsilon_percent*: None
max_a*: -56.42
max_b*: -56.42
min_a*: -152
min_b*: -152
num_data_points*: 4000000
shape*: (2000, 2000)
spatially_invalid_pts_ignored_in_a*: 561520
spatially_invalid_pts_ignored_in_b*: 561520

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*: 6
diff_outside_epsilon_fraction*: 1.745e-06
max_diff*: 0.005493
mean_diff*: 9.586e-09
median_diff*: 0
perfect_match_count*: 3438474
perfect_match_fraction*: 1
r-squared correlation*: 1
rms_diff*: 7.257e-06
std_diff*: 7.257e-06
trouble_points_count*: 6
trouble_points_fraction*: 1.5e-06