pontiPy 3.0

Automation of Pontius Matrix

pontiPy: A Python Library for Map Comparison Metrics in a Cross-Tab Matrix Latest Version: 3.0 Latest Update: October 2021 Python Version: 3.7

Dependencies & Usage

• Download: pip install -i https://test.pypi.org/simple/ pontiPy==3.0
• Required libraries for pontiPy usage

import pandas as pd
from pontiPy import pontiPy

• Creating a Dataframe from an inputted Sample & Loading the pontiPy package

df = pd.read_csv('sample.csv', index_col= 0)
display(df)
pontipy_df = pontiPy(df)

Further Information & Contact

• Library Information:
  Priyanka Verma, [e-mail] Priscilla Ahn, [e-mail]

• Metric Methodolgy:
  Robert (Gil) Pontius, [e-mail]
  See Metrics that Make a Difference, Chapter 4
  Link to Chapter 4

Acknowledgements

Dr. Robert Gilmore Pontius Jr created the first version of this workbook in 2001. Pontius has revised this workbook several times, and each revision has a larger number for the suffix of the filename. Pontius created version 42 in 2019.

Visit www.clarku.edu/~rpontius for publications on this workbook's methods. Specificaly, see: Pontius Jr, Robert Gilmore and Ali Santacruz. 2014. Quantity, Exchange and Shift Components of Differences in a Square Contingency Table. International Journal of Remote Sensing 35(21): 7543-7554.

Pontius Jr, Robert Gilmore. 2019. Component intensities to relate difference by category with difference overall. International Journal of Applied Earth Observations and Geoinformation 77: 94-99.

Pontius Jr, Robert Gilmore and Marco Millones. 2011. Death to Kappa: birth of quantity disagreement and allocation disagreement for accuracy assessment. International Journal of Remote Sensing 32(15): 4407-4429.

Aldwaik, Safaa Zakaria, Jeffrey A Onsted, and Robert Gilmore Pontius Jr. 2015. Behavior-based aggregation of land categories for temporal change analysis. International Journal of Applied Earth Observation and Geoinformation 35(Part B): 229-238.