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Archives: Blog

link to How to Add Basemaps in QGIS

How to Add Basemaps in QGIS

QGIS only has one basemap that is included by default, Open Street Map. However, QGIS does have the functionality to support many different types of basemap sources and services. Basemaps can be...

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link to How to Pass Arguments to a Python Script from the Command Line

How to Pass Arguments to a Python Script from the Command Line

In Python, arguments are passed to a script from the command line using the sys package. The argv member of sys (sys.argv) will store all the information in the command line entry and can be accessed...

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link to 10 Ways to Initialize a Numpy Array (How to create numpy arrays)

10 Ways to Initialize a Numpy Array (How to create numpy arrays)

In Python, matrix-like data structures are most commonly represented with numpy arrays. The numpy Python package has been well-developed for efficient computation of matrices. The first step to using...

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link to 5 Easy Ways to Iterate Through a Python List or Tuple

5 Easy Ways to Iterate Through a Python List or Tuple

With Python, there is a multitude of methods to iterate through lists and tuples. Some of these methods can be complicated. If you're just learning about iteration in Python, you'll be best served by...

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link to Read and Plot NetCDF Data in Python with xarray and rioxarray

Read and Plot NetCDF Data in Python with xarray and rioxarray

Recently, I've started using rioxarray to read NetCDF data into xarray format. If you're not familiar with the xarray python package it's basically a wrapper (for lack of a better term) around numpy...

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link to QGIS Tutorial for Beginners

QGIS Tutorial for Beginners

This tutorial demonstrates how to install QGIS, set up and locate functions and tools in the QGIS interface, add spatial and tabular data to QGIS, perform simple GIS analysis, and create a formal map.

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We believe data processing and analytics routines should be repeatable without purchasing expensive software licenses. This is possible with open-source programs and programming languages. Our goal is to help you learn open-source software and programming languages for GIS and data science. We do this with free tutorials and paid courses.

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