A collection of Gnuplot examples

I needed to use Gnuplot a little bit over the last few days, mostly to create 2D line charts, and these are my brief notes on how to get started with Gnuplot. If you haven’t used it before, it’s a pretty amazing tool.

Jumping right in ...

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Installing gnuplot

Use MacPorts or Homebrew to install Gnuplot on Mac OS X systems:

port install gnuplot
brew install gnuplot
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Sample data files

My examples use the following 2-column and 4-column data files:

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Always visualize data alvin December 26, 2015 - 7:15pm

I’m sure there must be other ways to mathematically see these differences, but I agree with the general concept that it can be easy to be misled by data. (Image from this Twitter page.)

How I Estimate Software Development Projects (book cover design)

I like to have fun with graphics once in a while, so when I created my new eBook, How I Estimate Software Development Projects, I took a couple of hours to come up with a cover I kinda-sorta like. I could do much better given a couple of days, but for only working on it for a few hours, I’m okay with this.

Veerle Pieters - Duoh! design inspiration alvin April 19, 2013 - 7:58am

From time to time I visit Veerle Pieters' Duoh! website for some design inspiration. Fonts, colors, art, web design, it's all good. This image is from