Tag Archives: Analysis

R-ArcGIS Bridge – Improving methods of statistical analysis in ArcGIS

The R-ArcGIS Bridge is a little-known secret to improving your methods of geostatistical analysis. By integrating ArcGIS and R you can have the best of both geospatial and statistical platforms. With the R-ArcGIS Bridge you and I can now perform and visualise comprehensive statistical analysis directly in ArcGIS Desktop.

 

Why would you use R?

R is a powerful platform for solving big data science problems. R is both an open source language and programming environment, widely used for statistical analysis. R offers an online repository with 6,400 statistical problem-solving packages.

The R-ArcGIS Bridge is a way to load your spatial data into R, or, create custom Geoprocessing Tools in ArcGIS that leverage the capabilities of R. The Bridge can be directly connected to either ArcGIS Pro (version 1.1+) or ArcMap (10.3.1+), and R (3.1+) or RStudio. The R-ArcGIS Bridge can then be used with pre-existing tools written in R, without the need to learn any code!

There are several uses of R-ArcGIS Bridge:

  • Use R functions to read and write spatial data
  • Convert between data types
  • Solve complex geostatistical problems
  • Write, configure, and modify an R script to be executed from a Geoprocessing tool
  • Share an R script with others as a toolbox

 

How do I get started?

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Enhancing your portal

Directions LIVE 2016 kicked off in Melbourne on Tuesday 17 May and has just finished up in Canberra.  It was a great tour, and it was terrific hearing how so many of you are making use of the technology for your various projects.

I had free rein to talk about five things that I think are powerful features of a portal (a portal being either ArcGIS Online or Portal for ArcGIS).  I have recorded these sessions into the five separate videos below.

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Five New Tools You’ll Meet in 10.1

Here are some of my favourite new tools and improvements that have come with the 10.1 release. These should make your mapping and workflows just that much more enjoyable.

1. Searching for a projection

With ArcMap shipping with over 4000 projections, it is easy to feel a bit overwhelmed, especially if you are a new user. Although you have always been able to save the frequently used projections to your favourites, you can now input keywords and find exactly what you are looking for. If you have no idea what you are looking for, you can even let ArcGIS use your current extent to suggest the best projection.

2.Enable Editor Tracking

Trying to figure out who moved that feature without telling you? Now with Editor Tracking enabled on your feature class, any new features or modifications will be logged with the username and time/date of creation or modification. This works with SDE databases as well. This is going to make your metadata housekeeping a lot easier. Note: This will not tell you if a feature has been deleted – best to use versioned geodatabases for that.

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Ozri Update: Analysis, Optimised: Geoprocessing in Action

The latest from Ozri

I’ve just worked up my appetite for the gala dinner by giving our presentation about Optimising Analysis using Geoprocessing. It was a good crowd for an afternoon session and the message of harnessing the out-of-the-box geoprocessing functionality in ArcGIS to improve areas of business not usually considered “GIS-related” was well received.

It’s important to emphasize that ArcGIS is much more than a plotting tool. Many organisations use ArcMap just to plot the locations of their assets, but there’s so much more it can do. Sometimes, though, the functionality of the software is overwhelming, and it’s difficult to know where to even get started, let alone which tools are best for the job. We focused on showing how some of the builtin tools can be used in ways which may not be immediately obvious, and how they can be linked together to streamline the process and reduce the feeling of being overwhelmed.

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