A large 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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A Java web service client that gets a list of objects

I just solved a problem with a Java web service client I've been working on. I've been trying to read a Java web service that was created with Apache Axis2, and it has methods that can return an array or List of User objects. I couldn't find any examples on the Axis2 web site that showed how to get an array or List from a web service client, but I finally find the solution by digging around a little.

In this post I'll provide some sample Java source code that shows what I did to solve this problem.

How to call/test a web service from a browser

Web service FAQ: How can I test a web service from a browser?

I’ve been working with web services a lot this past week, specifically with Apache Axis2, and here are a few notes I've learned about hitting one of my web services from a browser.

Looking at the WSDL for a web service from a browser

To view the WSDL document for a web service I created named UserService, I just went to the following URL in my browser: