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Alice Waddicor's Blog

This post explains how to create a PowerBI report which sources data from two separate Azure SQL Databases. PowerBI offers two data access mechanisms; Import and DirectQuery. DirectQuery provides a range of benefits, the chief of which is that data is automatically refreshed. DirectQuery doesn’t import any data into PowerBI, instead it queries the data […]

In February 2016, I completed my second year of endjin’s three year custom apprenticeship scheme. This blog is a chance for me to reflect on what was learnt over the year – hopefully others will find it useful too. Year one had involved a very steep learning curve as I transitioned from student to graduate […]

A short while ago, I was trying to classify some data using Azure Machine Learning, but the training data was very imbalanced. In the attempt to build a useful model from this data, I came across the Synthetic Minority Oversampling Technique (SMOTE), an approach to dealing with imbalanced training data. This blog describes what I […]

Azure data services part 3: Azure Machine Learning

by Alice Waddicor

In parts 1 and 2 of this mini-series, I wrote brief intros to HDInsight and Stream Insight, Azure’s offerings for big data analytics and real-time analytics. Next up, Azure Machine Learning. What it’s for: Azure Machine learning provides a GUI with drag and drop pre-built components for carrying out predictive analytics. You can also plug […]

Azure data services part 2: Stream Insight

by Alice Waddicor

This blog is part of a series where I’m writing up my notes from a training session on Azure’s data services. The previous post dealt with Azure’s Hadoop implementation, HDInsight. This week, I’m going to write about Stream Insight. What it’s for: Stream Insight is an Azure service for real-time event processing. Use cases for […]

Azure data services part 1: HDInsight

by Alice Waddicor

Last Autumn, Richard Kerslake and I were lucky enough to land in the warmth of Barcelona, for a Microsoft Analytics training event. The sessions gave an introduction to Azure’s HDInsight, Stream Analytics and Machine Learning services. I’m going to write up a quick summary of what I learned about each service, starting with HDInsight. What […]

With Power BI now in public preview everywhere, you don’t need to be a “data scientist” to do data science! Power BI is a powerful tool for visualising performance, user interactions and other data for your applications. There is so much useful data sitting passively in various storage accounts, hiding interesting trends or unwanted behaviour. […]

I sometimes find myself in a situation where I want to include some, but not all changes in a file in a Git commit. For example, a colleague uses Visual Studio 2015, whereas I use 2013, so when I open a solution to help out on their project, the .sln file is updated to show […]

I recently needed to style a dropdown menu which was part of a set of elements inserted into the DOM by a third party JavaScript library (CK Editor) when another element was clicked. To style the dropdown, I needed to have a look at the DOM elements for the dropdown. However, this was tricky because […]

Year 1 as an endjin software engineering apprentice

by Alice Waddicor

Year one of my apprenticeship with endjin has gone incredibly quickly. I came to endjin having completed the taught modules of a Computer Science conversion MSc (the project was completed this year). When I look back on what I’ve learnt, it’s not just technical facts, but also the skills to deal with common issues, a […]

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