Pentaho Report Designer’s (PRD) charting capability is great – it has numerous charts to choose from and the formatting is extremely flexible. However I did have a problem with charts represent large data sets. For example I had a list of countries and a bar chart showing the population for each country, users were able to view one or more countries at a time using a multi value list parameter. The problem occurred when there were too many countries, the chart’s labels became unreadable. One method was to create a chart which had a dynamic width depending on the amount countries a user selected.
Creating Dynamic Sizing Charts with Pentaho Report Designer.
Posted under Open Source, Pentaho, Report Designer, Tutorials, Visualisation
Review: Pentaho 3.2 Data Integration – Beginner’s Guide.
Posted under Data Integration, Pentaho, Reviews
Recently I was given the chance to review Maria Carina Roldan’s new book “Pentaho Data Integration 3.2 – Beginners Guide”. Maria is an active member of the community and be found on the forums under the (surprise, surprise) Pentaho Data Integration (PDI) section.
As I had been given an ebook to review it was hard to sit down and read through it easily – it just isn’t the same as the real thing. Generally the book is meant for beginners (as the title suggests) as it covers the basics and some intermediate topics of Pentaho’s Data Integration tool. The best thing about this book is that each chapter uses ‘real-life’ data scenarios i.e. football game results and backs it up with quick pop quiz’s to test your PDI knowledge.
I recommend the book for both beginner and intermediate users of PDI and is a great to keep handy on your desk for quick reference. The book covers many different areas but some of the main topics include: transformations and jobs, JavaScript, databases, error handling and using repositories.
So what are you waiting for? Head over to Packt Publishing and grab yourself a copy!