Technical Tidbits From Spatial Analysis & Data Science

Menu

Skip to content
  • Home
  • Intro R workshop
  • Spatial R workshop
  • Machine Learning R workshop
  • Home
  • Data Solutions
  • Training
  • Research
  • About Us
  • Tech Blog
  • Contact us

Category: Python

An untested list of open source options for spatial routing

Posted on January 29, 2019 by zev@zevross.com · Leave a comment

For years we have used ArcGIS’ Network Analyst to compute network distances and route-based service areas. In the past we found open source options to be lacking. We experimented, for example, with pgRouting in 2014 and our rough assessment was that it did not provide an adequate alternative. Details are in our blog post on […]

Continue reading →

No ESRI, no problem. Manipulate shapefiles with the Python library gdal

Posted on June 9, 2014 by zev@zevross.com · 3 Comments

Although we still use ESRI products such as ArcGIS for geographic analysis, more and more we find ourselves turning to open source software like PostGIS and QGIS. In many cases, though, even PostGIS and QGIS are more software than necessary for a given task and we prefer to skip the ‘middleman’ in favor of the […]

Continue reading →

Using the Python library BeautifulSoup to extract data from a webpage (applied to World Cup rankings)

Posted on May 16, 2014 by zev@zevross.com · 2 Comments

The Python library BeautifulSoup is an incredible tool for pulling out information from a webpage. You can use it not only to extract tables and lists but you can also use to to pull out very specific elements like a paragraph with a green font color. To briefly illustrate this functionality and in honor of […]

Continue reading →

R, Python, PostgreSQL (and more): A data science workflow example

Posted on April 29, 2014 by zev@zevross.com

Although many data science-related projects can be completed with a single software tool we often find that decisions about what tool to use for a project involve weighing a combination of what tool would be “best” for the job, what tools we're most familiar with and whether we already have scripts we can use. As […]

Continue reading →

Extracting tabular data from a PDF: An example using Python and regular expressions

Posted on April 9, 2014 by zev@zevross.com · 3 Comments

It is not uncommon for us to need to extract text from a PDF. For small PDFs with minimal data or text it's fairly straightforward to extract the data manually by using 'save as' or simply copying and pasting the data you need. For a recent project, however, we were asked to extract detailed address […]

Continue reading →

We can help!

We specialize in data analytics, interactive maps, data visualization and Shiny applications.

Learn more about us

Search blog posts

Subscribe to new posts by email

Follow us on twitter

Follow @zevross
My Tweets

Categories

  • D3
  • Data Visualization
  • Database
  • GDAL
  • ggplot2
  • GIS/Maps
  • Graphic Design
  • JavaScript
  • LeafletJS
  • Markdown
  • PostGIS
  • PostgreSQL
  • Python
  • R
  • Regular Expressions
  • Shiny
  • Spatial
  • Uncategorized
  • Web Development
  • Web Mapping

Recent Comments

  • GS on Predictive modeling and machine learning in R with the caret package
  • Rodrigo on Using the R function anti_join to find unmatched records
  • Dev on Mapping in R using the ggplot2 package
  • fio on Map and analyze raster data in R
  • DC on Predictive modeling and machine learning in R with the caret package
© 2023 Technical Tidbits From Spatial Analysis & Data Science
Powered by WordPress & Themegraphy
ZevRoss Spatial
Analysis
209 N. Aurora St, 2nd Floor
Ithaca, NY 14850
607-277-0004

info@zevross.com