Archive for September, 2015

Thursday, September 10th, 2015

Bar chart baselines start at zero

I linked to a great post on FlowingData a few weeks ago about some basic rules for visualizations. Nathan then gave a more detailed treatment of his first rule: I already covered the small handful of rules that pertain mostly to traditional statistical graphics. The first one–to always start your bar charts with a zero […]

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Tuesday, September 8th, 2015

IDL 8.5: other stuff

There are quite a few new features in IDL 8.5 that I have not covered in previous articles. Here is a summary list: There is now a DIALOG_COLORPICKER which you can present to users to choose a color: Analogous to the command line utility with the same name, IDL 8.5 adds a WGET routine to […]

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Thursday, September 3rd, 2015

Print version of Modern IDL

Since this spring when I sold the last print copies, Modern IDL has been available as PDF only. I have not wanted to make another print run because of the large up front investment required, but I have finally explored the on demand printing services that have been around for awhile. I am happy to […]

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Tuesday, September 1st, 2015

IDL 8.5: IDL kernel for Jupyter notebook

The IDL 8.5 feature that I am most excited about is the Jupyter notebook kernel for IDL. For a certain type of analysis, the notebook is a great tool for both recording an interactive session as well as presenting it to others. From the Jupyter documentation: The Jupyter Notebook is a web application for interactive […]

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